- helical gear reducer
- 斜齿轮: helical gear
- 减速器: decelerator; reducer; reduct ...
- 齿轮减速器: gear reducer; gear reduction unit unidad de reduccion de engranaje; speed reduction gear
- 斜齿轮减速机: helical speed reduction gear
- 正齿轮减速器: cylindrical reducer; spur reduction gear
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