短語詞組短語low pollution power source 低污染動力源pollution n source 污染源Limit pollution at source 防止污染優(yōu)于污染治理point pollution source 點污染源air pollution source emission 空氣污染源排放;空氣污染源排放物investigation of pollution source 污染源調(diào)查water pollution source [環(huán)境]水污染源agricultural pollution source 農(nóng)業(yè)污染源key pollution source 重點污染源 返回 pollution source