Based on the statistic result this paper makes a brief analysis on the formation of excessive pollution.
本文在给出统计数据基础上就污染物超标成因进行简要分析。
After making analysis on the cause of water pollution, the technical measures, which are economically feasible, are proposed for prevention of water pollution.
针对产生污染的原因，提出了经济可行的防止水质污染的技术措施。
Air pollution cluster analysis, at 8 sites in 4 cities of China are conducted based on pollution data; put in order to the air pollution degree.
根据空气污染数据对广州、武汉、兰州、重庆4城市8个点位进行了空气污染的聚类分析，并按空气污染程度进行了排序。
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