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1·Results: Determine the end-point of titration by sudden potential change of the indicatory electrode (use E-V curve method).

结果：指示电极电势突变时，为滴定终点(选用e V曲线法)。

2·The paper enumerates several reasons which cause the variation of indicatory values on scales, and introduces means to remove these variation.

本文列举了多种引起天平示值变动的原因，并介绍了消除这些原因的方法。