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单词 double bond
释义

WordReference Random House Unabridged Dictionary of American English © 2024
double bond, [Chem.]
  1. Chemistrya chemical linkage consisting of two covalent bonds between two atoms of a molecule, represented in chemical formulas by two lines, two dots, or four dots, as CH2=CH2;
    CH2:CH2;
    CH2::CH2.
  • 1885–90

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更新时间:2024/9/22 19:25:53