英语词汇“calcium reversal lines”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	calcium reversal lines
释义	calcium reversal lines calcium reversal lines [′kal·se·əm ri′vər·səl ‚līnz] (spectroscopy) Narrow calcium emission lines that appear as bright lines in the center of broad calcium absorption bands in the spectra of certain stars.
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