粉煤灰是火力发电厂排放的废渣，它的排放占用大量的土地，造成严重的环境污染。
Fly ash is the waste of power plants, it takes up a great amount of land and results in seriously environment pollution.
粉煤灰是火力发电厂排放的废渣，它的排放占用大量的土地，造成严重的环境污染。
Fly ash is the waste of power plants, it takes up a great amount of land and results in seriously environment pollution.
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