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词汇 sprocket
释义 sprock·et AHD[sprŏkʹĭt] D.J.[ˈsprɒkɪt]K.K.[ˈsprɑkɪt]n.(名词)
    1. Any of various toothlike projections arranged on a wheel rim to engage the links of a chain.链齿:在轮缘上的牙状凸出物,用以链条得以连续运动
    1. A cylinder with a toothed rim that engages in the perforations of photographic or movie film to pull it through a camera or projector.滚筒:齿状凸缘的筒体,通过照相机或摄影机把胶片或电影胶片转动
Etymology语源
  1. [Origin unknown] [不知起源]
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