contaminated substance

Transcending the dual opposition: On the dialectical relationship between pureness and impureness and its actual significance;

超越二元对立——论“纯”与“不纯”的辩证关系及其现实意义

After analyzing the source of impurity in brine which feed into ionic membrane electrolyzer and its harm,measures on optimizing brine purification were put forward,so as to raise the quality of brine.

通过对离子膜进槽盐水中不纯物的来源及危害的分析,提出优化盐水精制的方法,以期提高盐水质量。

The later is further analyzed as genuine crime of omission and pseudo crime of omission.

不作为犯罪分为纯正的不作为犯罪和不纯正的不作为犯罪。