| |||
racheting device | |||
ratchet gear | |||
ratcheting device; ratchet-wheel gear | |||
escapement; ratchet arrangement | |||
| |||
ratchet gear; ratchet gearing | |||
| |||
click mechanism |
棘 轮 装置: 16 phrases in 7 subjects |
Agriculture | 1 |
Automobiles | 1 |
Construction | 1 |
Drilling | 1 |
General | 2 |
Oil / petroleum | 2 |
Technology | 8 |