My own module performs a relatively simple deduction of relevant ancestor classes to dispatch, in contrast to PyProtocols' determination of adaptation paths.
This paper introduced the indirect determination of polyphosphate in laundry powder by potentiometric titration, the method is featured of simple, rapid and reliable.
用强酸分解洗衣粉中的聚磷酸盐，以电位滴定法间接测定其中的聚磷酸盐含量。
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The new method in the determination of negative ion surface-active agent is introduced, comparing with methylene blue method, it have merits of simple operation step and little dosage.