2026-04-14 08:41 浏览次数 22
固体废料
the solid castoff — fly ash discharged by fire power plants in our country has over a hundred million tons, it piles up on ground and pollutes environment.
而我国火力发电厂每年排放的工业固体废料——粉煤灰上亿吨,堆放在地表,严重污染环境。