英语词汇棘爪是什么意思，棘爪的用法、释义、翻译、读音、例句、短语词组-英汉汉英翻译词典

单词	棘爪
释义	DEFINITIVE EXAMPLES 权威例句〔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
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