This paper introduced the charting method of variable proportions and the saturation index method.

本文介绍了可改变比例的图示法及饱和指数法。

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This paper introduced the charting method of variable proportions and the saturation index method. They have been applied to practical examples. The result is rather satis factory.

本文介绍了可改变比例的图示法及饱和指数法．并应用于实例研究．结果较为满意。

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