点污染 meaning in English

point pollution

Abstract : in this paper , we proposed a diffusion equation for simulating the problem of pollution , and discussed its application to point pollution , especially while instantaneous point pollution happened . finally , we gave the numerical analysis
文摘:给出了一个适合于模拟污染问题的扩散方程，讨论了它在点污染，尤其是在瞬时点污染发生时的应用.并对一些实际算例进行了分析
According to water pollution levels , the lake was divided into three zones , and these are ( a ) relatively seriously polluted zone , ( b ) clean water resource protection zone and ( c ) less seriously polluted zone . the same result was confirmed by the fuzzy cluster analyse
根据千岛湖污染现状相似性，把千岛湖总体上划分为三大区域，即上游污染较重区、下游清洁水资源保护区和中游中等污染区，同时应用fuzzy聚类分析法对各个取样点污染状况进行聚类分析，结果也验证了上述的分类原则