英语词汇“sum rule”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	sum rule
释义	sum rule sum rule [′səm ‚rül] (quantum mechanics) A formula for a transition between energy levels in which the sum of the transition strengths is expressed in a simple form. See SR See SR
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