Crystals may be classified as either ionic or covalent by analogy with molecules.

与分子的情况一样,晶体也可以分为离子键型和共价键型.

辞典例句

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.

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Ionic bonding results from long - range electrostatic force which is not directly related to hardness.

离子键是由长程静电作用力造成的,它不影响硬度.

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Aminoin chitosan and carboxy on the surface of fiber form strong ionic linkage.

壳聚糖的氨基同纤维表面的羧基形成了牢固的离子键结合.

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