Underground coal gasification is the main direction of coal mining and utilization in the future.
煤地下气化是未来煤炭开采和利用的主要方向。
Underground water is the main water supply in Suihua Area.
地下水是绥化地区的主要供水水源。
Underground tunnel support of soft expansion rock is a main difficulty in mine construction currently.
松软臌胀岩层的井下巷道支护是目前矿山建设中的一个主要难点。
Therefore, the conjuncture of ground and underground become the main character of spatial conversion.
因此地面与地下的连接通道则成了空间环境转换的主角。
Tourism industry is one of the main users of surface and underground water.
旅游业是地表水和地下水的主要使用者之一。
The main geothermal energy resource of Anyang City is the underground hot water.
安阳市地热资源主要为地下热水。
The main reason for the ground subsidence is the excessive exploitation of underground water.
西安地区由于过量开采地下水，引起地面急剧沉降。
The main reason for the ground subsidence is the excessive exploitation of underground water.
西安地区由于过量开采地下水，引起地面急剧沉降。
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