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alkali是什么意思？

alkali

英[ˈælkəlaɪ] 美[ˈælkəˌlaɪ]
  • 复数：alkalis;
    • 相关单词 Alkali chloridesalkali liquoralkali lyealkali metalalkali metalsAlkali productionalkalifastalkaliferousalkalifreeglassalkalifyAlkaligenes
    例句
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    柯林斯高阶英汉双解学习词典释义
    • N-MASS
      碱
      An alkali is a substance with a pH value of more than 7. Alkalis form chemical salts when they are combined with acids.
    英汉词典释义
    英英词典释义
    • Noun
      1. any of various water-soluble compounds capable of turning litmus blue and reacting with an acid to form a salt and water;
      "bases include oxides and hydroxides of metals and ammonia"
      2. a mixture of soluble salts found in arid soils and some bodies of water; detrimental to agriculture
    行业词典
    • 医学： 碱：可与脂肪酸形成可溶性皂，使红色石蕊试纸变蓝，并可形成可溶性碳酸盐的物质；主要是铯、锂、钾、铷及钠的氢氧化物，也包括这些金属和氨的碳酸盐；
      土木工程： 碱集料反应；alkali-aggregate reaction；
      物理学： 碱金属原子；alkali-metal atom；碱土金属；alkali-earth metal；