地层水中适量的单价阳离子将降低石油磺酸盐的沉淀损失。
Moderate amount of single valence in the formation water can decrease the precipitation of petroleum sulfonates.
实验表明，所制备的纳滤膜能有效截留二价和多价阳离子，对单价阳离子的截留率极低。
The result showed that bivalent and multivalent cations could be removed effectively, while the rejection of univalent cations was very low.
蒙脱石晶层中单价交换阳离子所占据的面积及层电荷的确定方法，并对不同种方法进行了比较。
The area occupied by the monovalent exchange cation in the lattice layer of the montmorillonite and the determination ways of layer charge are presented. The different ways are compared.
蒙脱石晶层中单价交换阳离子所占据的面积及层电荷的确定方法，并对不同种方法进行了比较。
The area occupied by the monovalent exchange cation in the lattice layer of the montmorillonite and the determination ways of layer charge are presented. The different ways are compared.
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