| 单词 |
rock-shaft |
| 释义 |
ˈrock-shaft [rock v.1] A shaft which merely rocks or oscillates about its axis in place of making complete revolutions; esp. one working the levers connected with certain valves in some forms of engines.
1875Knight Dict. Mech. 1960/2. 1896 Cosmopolitan XX. 421/1 On the bottom of the vehicle, in front of the operator is a rock shaft, upon which the operator places his foot to manage the vehicle. |

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