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词汇 piston
释义

piston

noun
/ˈpɪstən/
/ˈpɪstən/
  1. enlarge image
    a part of an engine that consists of a short cylinder that fits inside a tube and moves up and down or backwards and forwards to make other parts of the engine move
    活塞
    Collocations DictionaryPiston is used before these nouns:
    • engine
    词源early 18th cent.: from French, from Italian pistone, variant of pestone ‘large pestle’, augmentative of pestello ‘pestle’.
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