| 词汇 | electrovalent bond | 
| 释义 | electrovalent bond  noun [ C ]  physics specialized uk/iˌlek.trəʊˌveɪlənt ˈbɒnd/ us/ilektroʊˌveɪlənt ˈbɑːnd/  电价键,离子键 the way in which two atoms are joined together when one atom loses an electron to form a positive ion, and the other gains an electron to form a negative ion | 
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