此系统不仅是信号设备的维修管理系统，同时也是行车安全保障系统。

It is not only a signal equipment maintenance information system, but also a safety...

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保障系统安全是很困难的。

Keeping a system secure is difficult.

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紧急制动是桥式吊车自动控制系统中保障系统安全性的重要一环。

Emergency braking plays an important role in the safety of overhead crane systems.

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紧急制动是桥式吊车自动控制系统中保障系统安全性的重要一环。

Emergency braking plays an important role in the safety of overhead crane systems.

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