All the alkali metals have a single s - electron outside a closed shell.
所有的碱金属都在闭合壳层之外有一单个S电子.
辞典例句
All the alkali metals have a singles - electron outside a closed shell.
换句话说,整个能级谱恰好就像是上下颠倒的碱金属能级谱一样.
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Nuclei with closed - shell have spherical symmetries.
闭合壳层的核具有球对称性.
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Dieless hydro - bulging is a forming technology under inner liquid pressure applied to closed shell.
无模液压胀形是对封闭壳体施加内压力的一种成形方式.
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