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 hy·dro·flu·or·ic acid /ˌhaɪdroˈflɔrɪk, ˈflʊr-/

 hy·dro·flu·or·ic acid /-ˌflʊrɪk, ˌflor, ˌflɔr-/ 名詞
 氫氟酸,氟化氫

 Hy·dro·flu·or·ic a.  Chem. Pertaining to, or containing, hydrogen and fluorine; fluohydric; as, hydrofluoric acid.
 Hydrofluoric acid Chem., a colorless, mobile, volatile liquid, HF, very corrosive in its action, and having a strong, pungent, suffocating odor. It is produced by the action of sulphuric acid on fluorite, and is usually collected as a solution in water. It attacks all silicates, as glass or porcelain, is the agent employed in etching glass, and is preserved only in vessels of platinum, lead, caoutchouc, or gutta-percha.
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 hydrofluoric acid
      n : a weak poisonous liquid acid; formed by solution of hydrogen
          fluoride in water