- stepped wheel gear
- 塔轮: cone pulley; stepped pulley
- 装置: installation; device; appara ...
- gearing齿轮装置: gearing toothed-wheel
- 变速轮装置: variable speed wheel gear
- 齿轮装置: gear assembly; geared system; gearing system; toothed gearing; toothed wheel gearing; wheelwork
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