煤矿石
- 网络Coal Ore;coal
煤矿石-
煤矿井下矸石充填技术&实现绿色开采的重大技术突破
Coalmine 's Underground Gangue Backfilling Technique & Realizing the Important Technical Breakthrough of Green Mining
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通过大比例尺平面地质填图、剖面测量和显微组构分析，九台营城煤矿区流纹岩中石泡构造发育。
Large scale planar geological mapping , profiling survey and microfabric analyses proved that lithophysa structure was developed in rhyolite in Yingcheng coal mine area , Jiutai City .