| 释义 |
DEFINITIVE EXAMPLES 权威例句〔click〕A mechanical device, such as a pawl, that snaps into position.爪，掣子：一种如爪的机械设备，咬合在某一位置美国传统〔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 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〔trip〕A device, such as a pawl, for triggering a mechanism.启动装置：一种启动某一机械设置的装置美国传统 |