电动机通过减速器，带动卷筒转动，使钢丝绳绕上卷筒或从卷筒放下，以升降重物。
The electric motor through the reduction gear, leads the reel rotation, causes the steel wire to wind the reel or to lay down from the reel, rises and falls the heavy item.
电动机通过减速器，带动卷筒转动，使钢丝绳绕上卷筒或从卷筒放下，以升降重物。
The electric motor through the reduction gear, leads the reel rotation, causes the steel wire to wind the reel or to lay down from the reel, rises and falls the heavy item.
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