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用法:1 [U] capacityof an atom to combine with, or be replaced by, another or others as compared with that of the hydrogen atom 化合价; 原子价:Carbon has a valence of four. 碳的化合价是四价.
用法:2 [C] (US) = valency.
英汉词典包含54938条英汉翻译词条，涵盖了常用英语单词及词组短语的翻译及用法，是英语学习的必备工具。