| 单词 | 棘爪 |
| 释义 | 〔ratchet〕The pawl, wheel, or bar of this mechanism.棘轮，棘爪，棘条：这种机械装置中的爪状物，转轮或长条〔pallet〕A projection on a machine part, such as a pawl for controlling the motion of a ratchet wheel in a watch escapement, that engages the teeth of a ratchet wheel to convert reciprocating motion to rotary motion or vice versa.棘爪：机器部件上的一个突出部分，例如在一个观察棘轮装置中控制棘轮运转的棘爪，用来衔接棘轮的齿，以将往复运动转换为旋转运动；反之亦然〔ratchet〕A mechanism consisting of a pawl that engages the sloping teeth of a wheel or bar, permitting motion in one direction only.棘轮，棘爪：一种包含合于转轮或长条倾斜性齿轮中的爪状物的机械，使轮仅向一个方向运动〔pawl〕A hinged or pivoted device adapted to fit into a notch of a ratchet wheel to impart forward motion or prevent backward motion.掣爪，棘爪：一种枢轴或转轴器械，能与齿轮缺口或齿间吻合来前进或防止后移 |
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