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单词 planetary electron
释义

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planetary electron
planetary electron n. an electron which is bound to an atomic nucleus.
ΚΠ
1919 Times 1 Mar. 7/4 The nucleus consisted of positive electrons, the planetary electrons being negative.
1991 Brit. Jrnl. Philos. Sci. 42 341 The atoms of a given element have many properties in common beyond possessing the same number of planetary electrons (the defining property).
extracted from planetaryadj.n.
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