海词手机词典

From leachale samples of landfill, 77 organic pollutants were identified, among which were polynuclear aromstic hydro-carbon ,paraffin hydrocarbon. phthalate esters and carcinogens.

播放读音 播放读音

以上内容独家创作,受著作权保护,侵权必究

海词词典,十七年品牌