mine exploitation

基本解释

The mine exploitation contributes 16% to the concentration as a secondary dust source.
矿山开采二次尘的浓度贡献占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.
矿山防治水工作是矿山开发的基础性工作，对煤炭工业的可持续性发展有越来越重要的意义。
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.
草原区的煤炭开采，大量的挖损和排土场岩土排弃占地面积大，人为堆垫的松散堆积物形成再塑地貌，破坏大面积草场原地貌环境，是新生水土流失的源地。