对混凝机理及其研究现状进行了全面的总结归纳，并对其定义给予了明确的解释。
Summarized and concluded coflocculation mechanism and its investigation actuality completely. And given clear explanations to the definition.
第三章中，将产品缺陷分为三类，即制造缺陷、设计缺陷、警示缺陷，并对其定义及判定标准加以阐述。
Among chapter three, the author divide product defect into three types: manufacture defect, design defect, warning defect, and explain the definition and standard.
在总结分析现有水质评价方法的基础上，提出了水污染指数评价法，并对其定义、计算方法进行了详细介绍。
It summarizes shortages of present water quality evaluate methods, and puts forward water pollution index evaluate methods, then explains detailedly its definition, calculate methods.
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