Apedia

Piston Engine ˈpɪstən 活塞 Part Inside Noun Cylinder

A "piston" is defined as a crucial component within an engine, characterized by a cylindrical or disc shape that reciprocates within a tube, driving the engine's mechanism.

The word "piston" refers to a metal disc or cylinder that is part of an engine, which moves within a tube to operate other engine parts.

word piston
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Collins
piston ★☆☆☆☆
/pɪ̱st(ə)n/
1
[N-COUNT 可数名词]活塞 A piston is a cylinder or metal disc that is part of an engine. Pistons slide up and down inside tubes and cause various parts of the engine to move.

    Oxford pis·ton / ˈpɪstən ; NAmE ˈpɪstən / noun _piston.jpg _piston.jpg a part of an engine that consists of a short cylinderthat fits inside a tube and moves up and down or backwards and forwards to make other parts of the engine move 活塞 piston pistons pis·ton / ˈpɪstən ; NAmE ˈpɪstən /
    LDC
    pistonpis‧ton /ˈpɪstən/ noun [countable]
    Word Origin
    Examples
    word sets
    Collocations
    a part of an engine consisting of a short solid piece of metal inside a tube, which moves up and down to make the other parts of the engine move
    WDF

    piston

    [ˈpɪstən]

    CET6TEM8考研IELTS
    n15694
    1694
    16
    138
    538
    727
    275
    NOUN6505
    119533

    Spoken:

    120411124
    pistons[489]
    活塞(100%)
    n.活塞
    n.(Piston)人名;(英、意)皮斯顿

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