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outer energy level造句

"outer energy level"是什么意思  
造句與例句手機版
  • The elements in the boron group are characterized by having three electrons in their outer energy levels ( valence layers ).
  • In graphite, each carbon atom uses only 3 of its 4 outer energy level electrons in covalently bonding to three other carbon atoms in a plane.
  • It's difficult to see outer energy level in a sentence. 用outer energy level造句挺難的
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