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primary pollution
ecol.
一次污染
从生产或生活各污染源向大气、水域或土壤中排放污染物质,能直接造成污染,从而对生物及物体产生危害,称为一次染污
oil
一次污染
tech.
原始污染
;
原生污染
;
原发性污染
;
初始污染
;
初级污染
primary pollution:
8 phrases
in 2 subjects
International trade
2
Technology
6
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