The tension of generator driving belt must be adjusted correctly; it can not be too loose or too tight.
发电机传动皮带张力的调整应该适度，既不能过松也不可过紧。
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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