By this method, the seawater intrusion degree can be classified according to the different ionic valence molar concentration percentage of eight ions in the total ionic valence molar concentration.

该法根据八大离子的离子价摩尔浓度占总离子价摩尔浓度百分比的不同，分析百分比在时间或空间尺度上的差异来评价海水入侵，划分入侵程度。

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Electrovalence: valence characterized by the transfer of electrons from atoms of one element to atoms of another during the formation of an ionic bond between the atoms.

电价：在原子间形成离子键的过程中，由电子从一种元素的原子转移到另一种元素的原子所表示的价。

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Field strength is calculated based on a valence of the metal cation and an ionic radius of the ion.

基于该金属阳离子的价数和离子的离子半径，算出场强。

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