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- Optimum road design in the very soft rock coal mine 极软岩矿井巷道优化设计
- Research into WebGIS for Soft Rock Coal Mine and It's Application 软岩煤矿网络地理信息系统研究及应用
- Deep grooves channelled the soft rock. 在软岩石上形成许多深槽。
- Any of various mollusks that bore into soft rock or wood. 钻蛀虫钻入松软岩石或木头中的软体动物
- soft rock coal 软弱岩煤体
- Deep grooves channeled the soft rock. 在质地松软的岩石上形成许多深槽。
- Do you like ballads or soft rock music? 你喜欢听抒情歌曲还是抒情摇滚乐?
- A method is put forward to estimate the geostress values in coal and soft rock, based on the in-situ measured results of geostresses in hard rock. 给出了由少量硬岩层实测地应力值的结果估算煤层及软岩层地应力值的方法;
- The TIR radiation of soft rock is influenced with seawater. 同时发现红外辐射温度变化受海水的影响。
- Researching of scientific supporting fashions of soft rock roadways in high geo-stress environment is the key of ensuring coal mining deeply in Coal Mine. 研究高地应力软岩环境下巷道科学的支护方式是保证煤矿采掘深部煤层的关键。
- The failure mechanism of the roadways in cross-mined and soft rock is described through investigation and analyses of the roadways in the north of Baodian coal mine. 通过对鲍店煤矿北翼跨采软岩巷道的调查与分析,说明了巷道的破坏机理,并根据跨采软岩巷道的特点提出了各类巷道的支护技术方案。
- The softer rock has been weathered away into soil. 较软的岩石风化成了泥土。
- Rock coal was used as raw material and Na2CO3 and CaCO3 were used as composite additive, vanadium was extracted via soaking with acidity solution after mixture was baked. 摘要以石煤为原料,加入碳酸钠和碳酸钙组成的复合添加剂,经焙烧、酸浸后提取石煤中的钒。
- The plates move slowly and continuously on the atmosphere, a layer of hot, soft rock in the mantle. 板块缓慢连续地在软流圈上移动,该软流圈是指地幔中炽热柔软层。
- Coal layers of Mine Liangjia in Longkou zone are Cenozoic tertiary soft rock layers, are consisted of mudstone, mudstone with oil rock, clay stone, mudstone with carbon, oil shale and coal layers. 摘要龙口矿区梁家煤矿煤系地层是新生代下第三系沉积的软岩地层,主要由泥岩、含油泥岩、粘土岩、炭质泥岩、油页岩和煤组成,是我国典型的三软煤系地层。
- Research has been in progress round the technology difficult problem that mines in the thick coal seam of extremely soft rock and easy self-ignition of TieFa coal industry group by this thesis.1. 本论文围绕铁法煤业集团小康矿极软岩层、易自燃厚煤层开采的技术难题进行了研究。
- According to the characteristics of soft rock tunnel in Hongmiao coal mine, the rational support for the tunnel is suggested.The application of bolt and shotcrete support is described in detail. 依据红庙煤矿软岩巷道的特点,提出巷道合理的支护形式,详细阐述了锚喷支护在施工中的应用。
- Research has been in progress round the technology difficult problem that mines in the thick coal seam of extremely soft rock and easy self-ignition of TieFa coal industry group by this thesis. 本论文围绕铁法煤业集团小康矿极软岩层、易自燃厚煤层开采的技术难题进行了研究。
- The plates move slowly and continuously on the atmosphere,a layer of hot,soft rock in the mantle. 板块缓慢连续地在软流圈上移动,该软流圈是指地幔中炽热柔软层。
- The polypropylene fibre concrete is the new kind of concrete flexible shotcrete layer forms in the soft rock tunnel sup-porting engineering. 摘要聚丙烯纤维混凝土柔性喷层是软岩巷道支护中一种新型的喷层形式。