B-unit - Definition & Meaning

a non-powered locomotive unit that is coupled with a powered locomotive to provide additional traction or increase hauling capacity on trainsa non-powered locomotive unit that is coupled with a powered locomotive to provide additional traction or increase hauling capacity on trains

A B-unit is a type of railroad car that is used along with a locomotive, but it does not have its own driving controls or engine. Instead, it is a powered car that is usually attached to the front or rear of a train and relies on the engine of the locomotive or another car for power. B-units are often used to increase the power or capacity of a train, providing additional space for passengers or cargo. These units are common in diesel-electric locomotives, where the A-unit contains the driving controls and engine, while the B-unit serves as a supplementary power car.A B-unit is a type of railroad car that is used along with a locomotive, but it does not have its own driving controls or engine. Instead, it is a powered car that is usually attached to the front or rear of a train and relies on the engine of the locomotive or another car for power. B-units are often used to increase the power or capacity of a train, providing additional space for passengers or cargo. These units are common in diesel-electric locomotives, where the A-unit contains the driving controls and engine, while the B-unit serves as a supplementary power car.

例句

The B-unit was coupled behind the lead locomotive to help pull the heavy freight train up the steep incline.
B-unit被连接在牵引机车后面，以帮助拉动重型货运列车上陡坡。
The railroad company used B-units strategically to enhance the efficiency of their long-distance freight services.
铁路公司战略性地使用了B-unit来提高其长途货运服务的效率。
Mechanics inspected the B-unit regularly to ensure it maintained optimal performance and safety standards.
机械师定期检查B单元，以确保其保持最佳性能和安全性标准。