The analysis to pollution criterion of NPK fertilizer plant shows that the current standards cannot cover all the limitation of pollutant discharges.
对NPK复合肥工厂污染物排放标准的分析表明：现行的有关标准不能涵盖其污染物排放的限制。
Representations of indoor air pollution and criterion are introduced and indoor environment test in entire renovation of residential construction and the preventive treatment are given.
文中介绍了室内空气污染的几种表现及其判定标准，并且介绍了全装修住宅的室内环境检测、防治的现状。
Meanwhile, aggravation of the environmental pollution impels all the countries in the world to put forward stricter and stricter criterion of sulfur content for all oil products.
与此同时，环境污染的加剧促使世界各国对所有的石油产品提出了越来越严格的硫含量的要求。
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