回程鼓
Return journey drum
以上为机器翻译结果，长、整句建议使用 人工翻译 。
同时齿轮副回程间隙可通过齿轮副与转鼓间的重复装配调整消除，提高了设备利用率。
In addition, the gear-pair return clearance can be adjusted and eliminated through the repeated assembly of gear pairs and the rotary drums, so as to improve the utilization rate of equipment.
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