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词汇 sprocket
释义

sprocket

noun
/ˈsprɒkɪt/
/ˈsprɑːkɪt/
  1. (also sprocket wheel)
    a wheel with a row of teeth around the edge that connect with the holes of a bicycle chain or with holes in a film, etc. in order to turn it链轮;输片齿轮Topics Engineeringc2
  2. enlarge image
    one of the teeth on such a wheel链轮齿;链齿
    Topics Engineeringc2
  3. 词源mid 16th cent. (denoting a triangular piece of timber used in a roof): of unknown origin.
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