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  1. Oxford Dictionary

    backflow

    • IPA[ˈbakfləʊ]

    英式

    • n.
      the movement of liquid or air back in the direction it was flowing from

    • noun: backflow

    • 釋義

    名詞

    • 1. the movement of liquid or air back in the direction it was flowing from when filling the tank, use an anti-siphon device to prevent backflow the valves prevent backflow of blood into the veins