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单词 cotter
释义 cotter/ˈkɒtə/n. 1 a bolt or wedge for securing parts of machinery etc. (机器等上固定机件用的)制销，销 2 (in full 全称 cotter pin) a split pin that opens after passing through a hole 开尾销，扁销 [17th c. (related to earlier cotterel): origin unknown]
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更新时间：2026/5/6 16:53:53