| 单词 | 棘轮 |
| 例句 | DEFINITIVE EXAMPLES 权威例句〔escapement〕A mechanism, as in a typewriter, that controls the lateral movement of the carriage.棘轮装置：例如在打字机上用来控制行距的装置美国传统〔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美国传统〔ratchet〕The chair has a ratchet below it to adjust the height.这把椅子下面有棘轮调整高度。柯林斯高阶〔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，转轮或长条美国传统 |
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