释义 |
chemical bondn.(名词)chemical bondtop: covalent bonding in a water moleculecenter: metallic bonding in silverbottom: ionic bonding in sodium chloride- Any of several forces or mechanisms, especially the ionic bond, covalent bond, and metallic bond, by which atoms or ions are bound in a molecule or crystal.化学键:使原子或离子结合成分子或晶体的力量或历程,尤指离子键、共价键和金属键
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