The utility model can drive a wire rope through the combination of a swinging mounting, a stationary wire spool, a gearwheel disk, a fixed tray, a pinion, a motor, etc. to attain automatic elevating.
它通过转动支架、固定绕线盘、大齿轮盘、固定盘、小齿轮和电 机等进行组合带动钢丝绳实现自动升降。
Usually the same belt drives the alternator, and belt tension is adjusted by swinging the alternator on its mounting.
这根皮带一般也驱动交流发电机工作，皮带的张紧度通过在支座上摆动发电机的位置来进行调整。
Usually the same belt drives the alternator, and belt tension is adjusted by swinging the alternator on its mounting.
这根皮带一般也驱动交流发电机工作，皮带的张紧度通过在支座上摆动发电机的位置来进行调整。
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