The choice of mineral deposit development program is of importance to the undergroundexploitation.
矿床开拓方案的选择对地下矿床开采具有特别重要的意义。
2
Underground space exploitation on a large scale in city will bring a mass of discarded soil.
城市地下空间的大规模开发利用将产生大量弃土。
3
The article is based on the determination of some hydrogeological parameters for the exploitation of underground hot-water in Xi 'an area and puts forward some views.