大家都搜:
初级污染
一次污染
1、pollution essays───污染论文
2、pollution facts───污染事实
3、sediment pollution───沉积物污染
4、primary───adj.主要的;初级的;基本的;n.原色;最主要者
5、water pollution───[环境]水污染
6、noise pollution───n.噪音污染
7、indoor pollution───室内污染,室内空气污染
8、thermal pollution───热污染
9、pollution───n.污染;污染物
1、Evaluation on Sediment Heavy Metal Pollution of Primary Pollution River Reach in Guangdong Province───广东省主要污染河段底质重金属污染评价
2、Therefore, the primary pollution control objective must be point source pollution and diffuse source of domestic wastewater in rural areas.───因此水污染控制必须以点源污染和农村生活面源污染为双重控制目标。
3、Environmental disasters are primary pollution source in the coal mine area.───灾害是煤矿区环境污染的主要发生源。
4、kiln dust pollution primary pollution source of cement plant, to set up this text kiln cement plant dust removal these difficult problem carry on research.───机立窑粉尘污染源问题,针对立窑水泥厂除尘这个难题进行了研究。