张紧装置的配重箱在皮带的张紧过程中需加填充物，直到皮带张紧。
Replenished materials should be filled into the weight box of tensioning device during belt tension until the belt is tightened.
张紧装置的配重箱在皮带的张紧过程中需加填充物，直到皮带张紧。
Replenished materials should be filled into the weight box of tensioning device during belt tension until the belt is tightened.
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