Theo Trung quốc dữ liệu hải quan, Indonesia imported US$31.1 million of overhead cranes from China in 2021. As a widely used crane equipment, general overhead cranes play an important role in various industrial production. In the automotive industry, for example, a common use of overhead cranes is on assembly lines. They move automotive materials along different stations until the final product is fully built, making the assembly line more efficient. In the transport industry, overhead cranes assist in unloading ships. They greatly increase the speed of movement and transport of large items.
In shipbuilding, ships are complex to build due to their size and shape. Moving large, heavy objects around an oddly shaped area is nearly impossible without the right specialized equipment. Overhead cranes can move tools freely around the sloping hull. Most shipbuilding companies use wide-overhead gantry cranes, which are excellent in heavy-duty manufacturing applications.
As a Chinese crane supplier, Dongqi Cần Cẩu has a very high quality in the manufacture and service of bridge cranes, and can provide various types of overhead cranes for Indonesian customers. In the application of overhead cranes, different models and parameters are often used according to different usage scenarios. Dongqi Crane can almost meet the needs of most Indonesian customers. If you are in Indonesia, if you have any questions or needs about our overhead cranes, you can leave us a message through the website or tell us by Email: sales010@cranesdq.com
Single Girder Overhead Crane sold to the Indonesia Price
Cầu trục trên không
Khoảng cách (m)
Nâng Cao(m)
Nguồn Cung Cấp(V)
Giá(USD)
1 tấn
7.5~31.5
6~30
220-480/3/50
$2200~40000
2 tấn
7.5~31.5
6~30
220-480/3/50
$2500~40800
3 tấn
7.5~31.5
6~30
220-480/3/50
$2600~41000
5 tấn
7.5~31.5
6~30
220-480/3/50
$3000~41500
10 tấn
7.5~31.5
6~30
220-480/3/50
$4000~45000
16 tấn
7.5~31.5
6~30
220-480/3/50
$5000~48000
20 tấn
7.5~31.5
6~30
220-480/3/50
$6000~50000
25 tấn
7.5~31.5
6~30
220-480/3/50
$8000~56000
Giá của các trên trên cầu cần cẩu sẽ thay đổi với các thị trường không có thông báo mới, chỉ để tham khảo. Nếu bạn cần một giá chính xác trong tương lai, xin vui lòng liên lạc với chúng tôi.
Double Girder Overhead Crane sold to the Indonesia Price
Cầu trục trên không
Khoảng cách (m)
Nâng Cao(m)
Nguồn Cung Cấp(V)
Giá(USD)
1 tấn
7.5~31.5
6~30
220-480/3/50
$4000-60000
2 tấn
7.5~31.5
6~30
220-480/3/50
$4500-62000
3 tấn
7.5~31.5
6~30
220-480/3/50
$5000-66000
5 tấn
7.5~31.5
6~30
220-480/3/50
$5800-72000
10 tấn
7.5~31.5
6~30
220-480/3/50
$6500-79000
16 tấn
7.5~31.5
6~30
220-480/3/50
$7800-86000
20 tấn
7.5~31.5
6~30
220-480/3/50
$8600-95000
25 tấn
7.5~31.5
6~30
220-480/3/50
$9800-110000
Giá của cần cẩu trên không sẽ thay đổi theo thị trường mà không cần thông báo và chỉ để tham khảo. Nếu bạn cần một mức giá chính xác trong tương lai gần, xin vui lòng liên hệ với chúng tôi.
Types of Overhead cranes imported from Dongqi in the Indonesia
Cần cẩu trên không Grab
Cần cẩu gầu ngoạm là loại cần cẩu dầm đôi hạng nặng được trang bị gầu ngoạm, có thể sử dụng thường xuyên. Sức nâng của cần cẩu gầu ngoạm bao gồm trọng lượng chết của gầu ngoạm là từ 5 tấn đến 25 tấn. Cấp làm việc của cần cẩu gầu ngoạm là A6. Các thông số kỹ thuật của cần cẩu gầu ngoạm được đưa ra trong bảng sau để bạn tham khảo và thiết kế tùy chỉnh có thể được cung cấp bởi cần cẩu Dongqi.
The application of grab bridge cranes in Indonesia is mainly reflected in large-scale industrial projects and port operations, especially playing an important role in handling bulk materials such as fertilizers, ores, etc. The following is a specific analysis of the application of grab bridge cranes in Indonesia:
1. Lĩnh vực ứng dụng
Port operations:
In many ports in Indonesia, grab bridge cranes are used to load and unload bulk materials on ships, such as fertilizers, coal, ore, etc. Its efficient and stable operating performance greatly improves the loading and unloading efficiency of the port.
Industrial projects:
Indonesia has many large-scale chemical, mining and other industrial projects, which require the input and output of large amounts of bulk materials during the production process. Grab bridge cranes have become indispensable loading and unloading equipment in these projects due to their strong adaptability and wide operating range.
2. Application advantages
Efficiency: The grab bridge crane has a large operating range and fast operating speed, which can significantly improve loading and unloading efficiency and reduce the residence time of materials in the port.
Adaptability: This equipment is suitable for loading and unloading a variety of bulk materials, such as fertilizers, coal, ores, etc., and has strong adaptability and flexibility.
Stability: The use of advanced technology and manufacturing processes ensures the stability and safety of the equipment during operation.
Environmental protection: During the loading and unloading process, it can reduce the generation of dust and other pollutants, complying with environmental protection requirements.
Dongqi supply the single girder crane with lifting capacity: 1~20t, span:7.5~28.5m, lifting height 1~30m, low work class A3,A4. We also design and manufacture the nonstandard crane according users’ demanding.
Cần cẩu này được sử dụng trong môi trường xung quanh nhiệt độ-25 độ có thể đến+40 có thể,ẩm toán 85%,dưới độ cao 1000m, năng lượng cung cấp 3-ph, 380,50(có thể thay đổi như dùng nhu cầu).
LD single-girder bridge cranes are widely used in Indonesia, mainly due to their design advantages such as reasonable structure, easy operation, compact size and excellent performance. The following is a specific analysis of the application of LD single-girder bridge cranes in Indonesia:
1. Lĩnh vực ứng dụng
Sản xuất công nghiệp:
In factories and workshops in Indonesia, LD single-girder bridge cranes are widely used to lift various materials and equipment. Its stable performance and high load-bearing capacity enable it to adapt to various complex working environments.
Warehouses and logistics:
Warehouses and logistics centers are another important application area for LD single-girder bridge cranes. In these places, cranes need to lift goods frequently, and LD single-girder bridge cranes can meet these needs with their high efficiency and flexibility.
Xây dựng cơ sở hạ tầng:
With the acceleration of infrastructure construction in Indonesia, LD single-girder bridge cranes play an important role in various construction projects. For example, in the construction of hydropower stations, transportation facilities and construction sites, cranes are used to lift large components and equipment.
2. Application advantages
Reasonable structure and strong rigidity of the whole machine:
This design ensures the stability and load-bearing capacity of the crane, so that it can maintain high energy efficiency and safe operation in various working environments.
Convenient operation:
The LD single-beam bridge crane provides a variety of operation methods, such as ground handle buttons and wireless remote control, so that users can easily control the operation of the crane and improve work efficiency.
Compact size:
The LD single-beam crane can exert excellent lifting capacity in a limited space, especially suitable for factories, warehouses and material yards.
Excellent performance:
Những Châu âu điện hoist host with optimized design and good performance is adopted, which not only improves the performance and productivity of the equipment, but also increases safety.
Green energy saving:
It has functions such as real-time safety monitoring and frequency conversion speed regulation, and at the same time has a low failure rate and is easy to maintain, which meets the requirements of modern industry for energy saving and environmental protection.
3. Market situation
With the in-depth development of China-Indonesia economic and trade cooperation, more and more Chinese crane manufacturers have set their sights on the Indonesian market. LD single-beam bridge crane has received widespread attention and recognition in the Indonesian market due to its excellent performance and wide application fields.
At the same time, with the continuous advancement of Indonesia's infrastructure construction and the accelerated development of industrialization, the market demand for LD single-girder bridge cranes will continue to grow.
Cần cẩu điện từ QC là một loại vật liệu thiết bị xử lý, được trang bị cắt điện từ chuck và tương ứng với hệ điều hành để xử lý và nâng vật kim loại. Nâng lực của các điện từ trên không cần cẩu bao gồm những trọng lượng điện từ 5 đến 32 tấn. Các lớp học làm việc của điện từ cẩu là A5 và 6. Từ lâu thời gian là 10 đến 30 phút.
QC electromagnetic bridge cranes usually incorporate electromagnetic chuck technology, allowing them to absorb and carry metal or other magnetically conductive materials. Such cranes are widely used in steel, smelting, scrap recycling and other industries because they can efficiently handle magnetically conductive materials in bulk, block or plate form.
Potential applications in Indonesia
Steel and smelting industry:
Indonesia is rich in mineral resources, including iron, nickel and other metal minerals. In the steel smelting process, electromagnetic bridge cranes can be used to transport iron blocks, steel plates and other materials to improve production efficiency.
In the field of scrap recycling, QC electromagnetic bridge crane can efficiently sort and process scrap metal, such as metal parts in scrap cars, home appliances, etc.
Ports and Logistics:
As a country consisting of many islands, Indonesia has frequent port logistics activities. Electromagnetic bridge cranes can be used for cargo loading and unloading at port terminals, especially when handling bulk metal materials. They have significant advantages.
In logistics warehouses, this type of crane can also be used for the storage and handling of metal materials.
manufacturing:
In industries such as automobile manufacturing and machinery manufacturing, electromagnetic bridge cranes can be used to transport and assemble metal components on production lines.
This type of crane can also play an important role in some special processing fields, such as steel plate cutting, stamping and other processes.
Things to note
Although QC electromagnetic bridge crane has wide application potential in Indonesia, the specific application needs to be determined based on local market demand, industry standards and the actual situation of the enterprise.
When selecting and using an electromagnetic bridge crane, factors such as its electromagnetic performance, load-bearing capacity, working environment, and safety performance should be fully considered to ensure stable operation of the equipment and operational safety.
Điện Hoist Trên cao dầm đôi cẩu là một cái cần cẩu với tời điện như chế nâng, với năng lực nâng 5 tấn 63 tấn, sử dụng cho tổng xử lý tài liệu và nâng. Các lớp học làm việc của tời điện trên không là A3 để A5.
Generally speaking, it is recommended to use a double beam bridge crane in situations where frequent use of the crane is required and the accuracy and efficiency of the crane are high. In addition, if the goods to be lifted are heavy and require long-term and frequent lifting operations, such as in industries such as steel and logistics, it is also recommended to use double beam bridge cranes. This type of crane can provide higher stability, efficiency, and accuracy, which can meet the requirements of these industries for lifting operations.
However, the final choice of which type of crane to use should also be determined based on specific circumstances, including factors such as the specific scenario used, the size and weight of the goods, space limitations, and budget.
Loại:LH
Sức nâng:5~63t
Nâng Cao:Khoảng:8m~32 m
Làm Nhiệm Vụ:A3~A5
Nhiệt Độ:-20~40 Độ C
The application of LH double-beam bridge cranes in Indonesia is mainly reflected in multiple industrial fields and logistics centers, especially in occasions where efficient, safe and high-load-bearing lifting equipment is required. The following is a specific analysis of the application of LH double-beam bridge cranes in Indonesia:
1. Lĩnh vực ứng dụng
Port operations:
Indonesia has many busy ports, and LH double-beam bridge cranes can be used to load and unload bulk cargo on ships, such as containers, bulk cargo, etc. Its double-beam structure and strong load-bearing capacity enable it to easily cope with the lifting and handling of large and heavy cargo.
Sản xuất công nghiệp:
In Indonesia's machinery manufacturing, steel smelting, petrochemical and other industrial fields, LH double-beam bridge cranes are widely used for material handling on production lines. It can help companies improve production efficiency, reduce labor costs, and ensure safety during the production process.
Construction site:
On construction sites, LH double-beam bridge cranes can be used to lift heavy objects such as building materials and prefabricated components. Its smooth operating performance and precise control capabilities enable it to ensure the safety and accuracy of building materials during the lifting process.
Logistics center:
In the logistics center, LH double-beam bridge crane can be used for storage, sorting and handling of goods. Its efficient operation capacity and wide applicability make it one of the indispensable lifting equipment in the logistics center.
2. Application advantages
Sức chứa lớn:
The LH double-beam bridge crane adopts a double-beam structure, which can withstand greater loads and ensure the stability and safety of the equipment during heavy-load operations.
Smooth operation:
The design of this crane focuses on smooth operation, reduces vibration and noise during operation, and improves work efficiency and operation quality.
Convenient operation:
The LH double-beam bridge crane is equipped with an advanced electrical control system and a user-friendly operation interface, allowing operators to easily grasp the operating status of the equipment and perform precise control.
An toàn và đáng tin cậy:
The equipment is designed with full consideration of safety factors and is equipped with a variety of safety protection devices and limit switches to ensure safety during operation.
3. Market situation
With the continuous advancement of infrastructure construction and the accelerated development of industrialization in Indonesia, the demand for efficient, safe and high-carrying lifting equipment is also increasing. LH double-beam bridge crane has broad development prospects in the Indonesian market due to its superior performance and wide application areas.
QD double girder overhead crane is composed of bridge, travelling mechanism, trolley, electric equipment. Main girder adopts box welded structure, crane travelling mechanism adopts separate drive, and lifting mechanism is equipped winch. All mechanism are controlled in driver’s cab.
Cầu trục dầm đôi model QD được ứng dụng trong kho hàng hở hoặc đường ray ngang để tiến hành các công việc bốc xếp và xử lý vật liệu thông thường. Đây là loại cầu trục chịu tải nặng đáp ứng nhu cầu sử dụng thường xuyên.
QD double-beam bridge cranes are widely used in Indonesia, mainly due to their large lifting capacity, large span, stable operation, and applicability in various industrial, construction and logistics fields. The following is a specific analysis of the application of QD double-beam bridge cranes in Indonesia:
1. Lĩnh vực ứng dụng
Cảng và hậu cần:
As an archipelago country, Indonesia has frequent port logistics activities. QD double-beam bridge cranes play an important role in Indonesian ports and are used for loading and unloading bulk goods such as containers and bulk cargo. Its strong lifting capacity and stable working performance enable it to efficiently handle various types of goods in the port and improve loading and unloading efficiency.
Sản xuất công nghiệp:
In Indonesia's industrial manufacturing fields, such as machinery manufacturing, steel smelting, petrochemicals, etc., QD double-beam bridge cranes are widely used for material handling on production lines. It can lift heavy machinery and equipment, large steel, etc. to ensure the smooth progress of the production process.
Construction site:
On construction sites, QD double-beam bridge cranes are also indispensable lifting equipment. It can be used to lift heavy objects such as building materials and prefabricated components, helping construction workers to complete construction tasks efficiently.
Warehouse and storage:
In warehouses and storage centers, QD double-beam bridge cranes are used for storage, sorting and handling of goods. Its efficient and stable operating performance makes warehouse management more convenient and efficient.
2. Application advantages
Large lifting capacity:
QD double-beam bridge cranes can carry a weight of several hundred tons, meeting the lifting needs of various large items.
Large span:
Its span can reach tens of meters, suitable for various large workplaces.
Stable work:
QD double-beam bridge cranes have good stability during work, which can ensure that the goods will not shake or tilt during transportation, thereby ensuring the safety of the goods.
Efficiency:
Its efficient operating capacity can significantly improve production efficiency and reduce labor costs.
3. Market situation
With the rapid development of Indonesia's economy and the continuous advancement of infrastructure construction, the demand for efficient and safe lifting equipment continues to increase. QD double-beam bridge cranes have broad development prospects in the Indonesian market with their superior performance and wide application fields.
Cần cẩu cách nhiệt QY được sử dụng rộng rãi trong luyện xưởng của tụ kim loại, nhôm và magiê. Cách này trên không cần cẩu được thành lập bởi hộp-loại chính dầm, cẩu đi du lịch cơ chế xe đẩy và phần điện.
Để ngăn chặn dòng điện chạy qua cơ cấu nâng hạ đến cần trục và đe dọa đến tính mạng của người vận hành, các bộ phận của cần trục cách điện được bảo vệ bằng cách xử lý cách điện. Mức độ làm việc của cần trục cách điện là rất nặng, do đó, bộ phận nâng hạ chính được trang bị phanh kép để đảm bảo sản xuất an toàn.
The application of QY insulated bridge crane in Indonesia is mainly concentrated in industrial fields such as non-ferrous metal smelting, especially electrolytic aluminum, magnesium, lead, zinc and other smelting workshops. This crane plays an important role in Indonesia's industrial production due to its unique insulation design and strong carrying capacity.
Application features
Insulation design: QY insulated bridge crane is equipped with several insulation devices at appropriate parts of the crane, such as insulation between hook and pulley, lifting mechanism and trolley frame, trolley frame and trolley, to prevent the current on the live equipment from being transmitted to the crane through the hoisted components during the working process, thereby ensuring the life safety of the driver and the safety of the equipment.
Heavy duty system: QY insulated bridge cranes are all heavy duty systems, which can cope with high-intensity and high-frequency operation requirements.
High safety performance: In order to ensure the safety of lifting, the lifting mechanism is usually equipped with double brakes to improve the reliability and safety of braking.
Convenient operation: All the actions and operations of the crane are completed in the driver's cab, providing a comfortable working environment for the operator.
Application areas
In Indonesia, QY insulated bridge cranes are mainly used in the following areas:
Nonferrous metal smelting: In electrolytic aluminum, magnesium, lead, zinc and other smelting workshops, since these metals may produce charged molten metal during the smelting process, the insulation design of QY insulated bridge cranes can ensure the safe lifting of these materials.
Industrial manufacturing: In the industrial manufacturing field where high temperature, corrosive or charged materials need to be handled, QY insulated bridge cranes also play an important role.
Precautions
When using QY insulated bridge cranes in Indonesia, the following points should be noted:
Environmental adaptability: Indonesia has diverse climatic conditions, and it is necessary to ensure that the crane can adapt to different ambient temperature and humidity conditions.
Maintenance: Regularly maintain the crane, check the performance of the insulation device and the braking system, and ensure that the equipment is in good condition.
Operation training: Provide professional training for operators to ensure that they are familiar with the operating procedures and safety precautions of the crane.
Châu âu trên cao dầm đôi cẩu là phiên bản mới nhất của cần cẩu trên cao được thiết kế với FEM tiêu chuẩn được phát triển trên cơ sở của truyền thống cẩu, do đó, châu Âu dầm đôi cẩu trên không đã đánh bại lợi thế, như là chưa từng có, hiệu suất, bó sát cấu trúc, ánh sáng chết trọng lượng an toàn, tin cậy, cao thực hiện, hiệu quả, và rộng rãi ứng dụng cho các ngành công nghiệp.
Do thiết kế lợi thế, châu Âu trên cao dầm đôi cẩu có thể giúp bạn thấp đầu tư ban đầu cho việc xây dựng nhà máy, tăng năng suất và thấp hơn cho những nỗ lực bảo trì hàng ngày, và giảm tiêu thụ năng lượng, và có được đầu tư cao hơn.
European double-girder bridge cranes are widely used in Indonesia, mainly due to their high performance, high efficiency and wide applicability. The following is a detailed analysis of the application of European double-girder bridge cranes in Indonesia:
1. Lĩnh vực ứng dụng
Chế tạo:
In Indonesia's manufacturing industry, European-style double-girder bridge cranes are widely used for the assembly, handling and stacking of heavy machinery and equipment. For example, in automobile manufacturing, shipbuilding, wind power equipment manufacturing and other fields, European double-girder bridge cranes can efficiently handle large parts and components and improve production efficiency.
Ngành logistics:
In the field of logistics and warehousing, European double-girder bridge cranes are usually used for material storage and transportation in large warehouses. Its efficient and stable operating capabilities can significantly improve logistics efficiency and reduce labor costs.
Ngành xây dựng:
In the construction of high-rise buildings in Indonesia, European-style double-girder bridge cranes are used for lifting materials, such as steel bars, concrete prefabricated components, etc. Its powerful lifting capacity and precise control performance ensure safety and efficiency during the construction process.
Xây dựng cơ sở hạ tầng:
In Indonesia's infrastructure construction projects, such as bridge construction, tunnel excavation, etc., European double-girder overhead cranes also play an important role. It can hoist large components and equipment, such as bridge steel beams, tunnel excavation equipment, etc., providing strong support for the smooth progress of the project.
2. Application advantages
High performance:
European-style double-girder bridge cranes adopt advanced design concepts and technologies, resulting in higher work efficiency and longer service life. Its variable frequency speed motor and PLC control system can achieve precise control and reduce unnecessary energy loss.
High security:
The crane is equipped with multiple protection systems, including overload protection, limit protection, emergency stop and other safety measures to ensure the safety of operators and equipment.
Easy to maintain:
The European-style double-girder bridge crane adopts modular design and standardized wearing parts, which facilitates the disassembly and replacement of parts and simplifies the daily maintenance process.
Intelligent:
Supports remote monitoring and fault diagnosis functions, which can detect and solve problems in time and reduce downtime.
China 10 ton Ld Model Top Running Overhead Crane for sale Indonesia
Ó người mẫu duy nhất trên cao dầm cẩu là đặc trưng của hợp lý hơn cấu trúc và sức mạnh cao hơn thép như một cả cần cẩu. Dầm đơn trên không cần cẩu là điển hình khi nâng năng lực ít hơn 20T.
Sử dụng cùng với cd thứ 1 người mẫu MD1 người mẫu điện hoist như một bộ đầy đủ, đó là một nhiệm vụ ánh sáng cẩu với một năng lực 0.5 tấn ~ 32ton. Khoảng là 7,5 triệu~ 22.5 m. Làm nhiệm vụ là A3~A5, nhiệt độ làm việc được -25-40ºC.
China 30t Double Beam Eot Overhead Crane for sale Indonesia
30 ton double girde overhead crane has the advantages of compact shape dimension, low building headroom height, light weight,small wheel pressure and so on. It uses together with CD1 or MD1 electric hoist. It is suitable for transporting, assembling ,repairing and load; unload works in mechanical processing workshop,metallurgy auxiliary workshop, storage, yards, power station and so on. It can replace normal double-beam bridge crane and being used in workshop of textile industry and food industry. The work type can be divided into two kinds- light class and intermediate class, the temperature of working environment is -25ºC-40ºC.
China 5 ton Grab Bucket Bridge Crane for sale Indonesia
As one of the overhead crane families,5 ton Grab Bucket Bridge Crane is widely used in loading goods in port, factory, workshop and power plant.The work classification is heavy. The working duty is A6.The lifting capacity includes the weight of the grab.
Nó được sử dụng rộng rãi trong nhà máy điện, quặng, đá vôi, coke, than đá, cát, xỉ, lỏng đất sét và các hạt kho tài liệu.
Yêu cầu đặc biệt nên đề cập đến khi lấy dưới nước tài liệu hoặc một số chất liệu đặc biệt. Khi sử dụng bên ngoài, có nước bằng chứng thiết bị, cùng với các lấy.
China Factory Direct Supplied 10 ton Overhead Crane for sale Indonesia
Ó người mẫu duy nhất trên cao dầm cẩu là đặc trưng của hợp lý hơn cấu trúc và sức mạnh cao hơn thép như một cả cần cẩu. Dầm đơn trên không cần cẩu là điển hình khi nâng năng lực ít hơn 20T.
Chúng tôi đã toàn diện thiết bị tiêu chuẩn chuyên nghiệp, kỹ sư thiết kế để cung cấp giải pháp tốt nhất cho yêu cầu riêng.
Này 10 ton Overhead Crane has two operational methods, ground(pendant controller /remote controller) or operational cabin room.
15 ton Ld Electric Overhead Crane with Ce ISO Approved for sale Indonesia
The LD single girder crane is typically employed for light duty service and ideal for lifts under 15 tons.
With simple structure, reduced freight expenses, simple and fast installation, the single girder crane tends to be less expensive.
The company produces overhead and gantry cranes for many years and can provide you with all of your lifting needs, from single girder light-duty cranes to double girder heavy-duty cranes.
How to customize Overhead Crane in Indonesia
Chúng tôi có một cần cẩu sản xuất nằm ở Trung quốc, cung cấp các cần cẩu biến dịch vụ toàn cầu cẩu khách hàng. Nếu bạn muốn để chỉnh một cần Cẩu Trên cao, bạn có thể để lại một tin nhắn trên trang web hay Email: sales010@cranesdq.com, nói cho chúng tôi những thông tin sau, và chúng tôi quản lý bán hàng sẽ liên lạc với bạn:
Sức nâng (tấn): __ ?( Công suất định mức)
Nâng cao (m):__ ? (Chiều cao từ móc trung tâm đến tầng)
Khoảng cách (m): __ ? (Khoảng cách giữa trung tâm đường sắt)
Tốc độ nâng (m/phút): __ ? (Đơn, kép, biến)
Khoảng cách di chuyển (m): __ ? (Chiều dài của đường sắt)
Nhiệm vụ công việc: __ ? (Một ngày bao nhiêu giờ? Một giờ bao nhiêu lần?)