trolley motor
常见例句
- There are no tricks, a trolley has an accumulator and a motor.
这不是什么把戏，在这推车装有一个蓄电池和一个发动机。 - In push bench, a trolley is arranged on the guide rail in the middle of the machine case, an oil motor and a coupler are arranged in the trolley.
顶管 机中，小车置于机箱中部的导轨上，油马达和联接器置于小车内。
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