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  1. phosphonic acid

    • IPA[fɒsˈfɒnɪk]

    英式

    • n.
      a crystalline acid obtained by the reaction of phosphorus trioxide with water.
    • noun: phosphonic acid

    • 更多解釋
    • IPA[fäsˌfänik ˈasid]

    美式

    • n.
      a crystalline acid obtained by the reaction of phosphorus trioxide with water.

    Oxford American Dictionary