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  1. rocker arm

    • IPA[ˈräkər ärm]
    • n.
      a rocking lever in an engine, especially one in an internal combustion engine which serves to work a valve and is operated by a pushrod from the camshaft.
    • noun: rocker arm, plural noun: rocker arms

    • 更多解釋
    • n.
      a rocking lever in an engine, especially one in an internal combustion engine which serves to ...

    Oxford Dictionary