英语词汇“m shell”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	m shell
释义	M shell M shell [′em ‚shel] (atomic physics) The third layer of electrons about the nucleus of an atom, having electrons characterized by the principal quantum number 3. M shell M shell the lowest energy level at which electron transitions give rise to x-rays. M shell (shel) The lowest energy level at which electron transitions give rise to x-rays.
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M shell