mine exploitation

基本解释

The mine exploitation contributes 16% to the concentration as a secondary dust source.
鑛山開採二次塵的濃度貢獻佔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.
鑛山防治水工作是鑛山開發的基礎性工作，對煤炭工業的可持續性發展有越來越重要的意義。
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.
草原區的煤炭開採，大量的挖損和排土場巖土排棄佔地麪積大，人爲堆墊的松散堆積物形成再塑地貌，破壞大麪積草場原地貌環境，是新生水土流失的源地。