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Chemical bond mainly includes electrovalent bonds , covalent bonds, and metalic bonds.是什么意思？

Chemical bond mainly includes electrovalent bonds , covalent bonds, and metalic bonds.

化学键主要有离子键 、 共价键 、 金属键.

相关词汇
chemical bond mainly includes electrovalent bonds covalent and

chemical

adj. 化学的，用化学方法制造的，化学作用的；n. 化学药品，化学制品；

bond

n. 纽带，联系，债券，保释金；v. 使结合，建立互信关系，与…紧密联系，与…黏合；

mainly

adv. 大部分地，主要地，基本上；

includes

v. 包括( include的第三人称单数 )，包含，列入，包住；

electrovalent

adj. 电价的；

bonds

n. 纽带（ bond的名词复数 ），黏合，联系，债券；

covalent

adj. 共有原子价的，共价的；

and

conj. 和，与，而且，于是，然后，因此；
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