North American railways have been looking at electronically-controlled pneumatic (ECP) brake technology because of the limitations of conventional pneumatically-controlled brake technology.
由于传统电-空制动技术的局限性，北美铁路一直在关注和改进电-空制动技术(ecp)。
Operation platform can be pneumatically elevated. It combined function of manually controlled and automatically controlled.
工作台气动升降，具有自动及手动两种控制方式。
Operation platform can be pneumatically elevated. It combined function of manually controlled and automatically controlled.
工作台气动升降，具有自动及手动两种控制方式。
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