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单词 potassium
释义

po·tas·si·um

noun
/pəˈtæsiəm/
/pəˈtæsiəm/
[uncountable]
(symbol K)
  1. a chemical element. Potassium is a soft silver-white metal that exists mainly in compounds which are used in industry and farming.Topics Physics and chemistryc2
    Oxford Collocations DictionaryPotassium is used before these nouns:
    • salt
    Word Originearly 19th cent.: from potash (earlier potass, from French potasse) + -ium.
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更新时间:2025/3/15 17:26:27