三峡库区江段江水甲基汞浓度与加拿大未被污染湖泊湖水相当。

Methylmercury concentration of river water was similar to that of unpolluted lake water of Canada.

youdao

三峡库区江段江水甲基汞浓度与加拿大未被污染湖泊湖水相当。

Methylmercury concentration of river water was similar to that of unpolluted lake water of Canada.

youdao