在离子化合物中，正、负离子的比例严格遵守化学公式定义的化合价关系。

For ionic compounds, the state of having exactly the ratio of cations to anions specified by the chemical formula.

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(化学)具有一个以上的化合价的，或具有三价或更高价的。

(Chemistry) having more than one valence or having a valence of 3 or higher.

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(化学)具有一个以上的化合价的，或具有三价或更高价的。

(Chemistry) having more than one valence or having a valence of 3 or high er.

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(化学)具有一个以上的化合价的，或具有三价或更高价的。

(Chemistry) having more than one valence or having a valence of 3 or high er.

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