空气制动器可操作地联接到齿轮系上，并且构造成消耗由表簧释放的机械能的一部分。
The air brake is operably coupled to the gear train and configured to dissipate a portion of the mechanical energy released by the clock spring.
表簧可操作地联接到在齿轮系中的齿轮中的另一个上，构造成存储由电动机供给的机械能，及构造成驱动控制阀。
The clock spring is operably coupled to another of the gears in the gear train, configured to store mechanical energy supplied by the motor, and configured to drive the control valve.
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