mine exploitation

基本解釋

The mine exploitation contributes 16% to the concentration as a secondary dust source.
礦山開(kāi)采二次塵的濃度貢獻(xiàn)占16%；
Prevention of mine water are basic jo bs of mine exploitation, and there are more and more important significances for sustainable development of coal industry.
礦山防治水工作是礦山開(kāi)發(fā)的基礎(chǔ)性工作，對(duì)煤炭工業(yè)的可持續(xù)性發(fā)展有越來(lái)越重要的意義。
The area of mine exploitation and outer dump or digging are large in steppe, which destroyed many grassland resources and also formed lots of new soil and water losses.
草原區(qū)的煤炭開(kāi)采，大量的挖損和排土場(chǎng)巖土排棄占地面積大，人為堆墊的松散堆積物形成再塑地貌，破壞大面積草場(chǎng)原地貌環(huán)境，是新生水土流失的源地。