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  1. backwash

    • IPA[ˈbakˌwôSH]

    美式

    • n.
      the motion of receding waves;a backward current of water or air created by the motion of an object through it
    • v.
      clean (a filter) by reversing the flow of fluid through it
    • verb: backwash, 3rd person present: backwashes, gerund or present participle: backwashing, past tense: backwashed, past participle: backwashed

    • noun: backwash

    • 釋義

    名詞

    動詞

    • 1. clean (a filter) by reversing the flow of fluid through it the very fine mesh is backwashed to remove solids
    • 更多解釋
    • IPA[ˈbakwɒʃ]

    英式

    • n.
      the motion of receding waves: the backwash is reduced in energy by the percolation of water into the shingle
    • v.
      clean (a filter) by reversing the flow of fluid through it: the very fine mesh is backwashed to remove solids

    Oxford Dictionary