英语词汇“para-hydrogen”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典-现代词典

单词	para-hydrogen
释义	para-hydrogen \\|parə+\ noun Etymology: para- (I) + hydrogen : molecular hydrogen in which the two hydrogen nuclei are spinning in opposite directions so that their contribution to the total angular momentum is zero — compare ortho-hydrogen
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