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sprockets是什么意思？

sprockets

柯林斯高阶英汉双解学习词典释义
  • N-COUNT
    链轮;(胶片的)输片齿轮;(磁带的)带齿卷盘
    A sprocket is a wheel with teeth around the outer edge that fit into the holes in a chain or a length of film or tape in order to move it round.