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- steep special thick seam 急倾斜特厚煤层
- The failure laws of surrounding rocks and over lying bed in the steep special thickness seam mining 急斜特厚煤层开采围岩与覆盖层破坏规律
- spontaneous ignition special thick seam 易发火特厚煤层
- Practice on Gas Drainage in Special Thick Seam of Low-breathe Freely 高位钻孔抽放低透气性特厚煤层瓦斯的实践
- Application of full seam bolt support to mine wide cross section gateway in special thick seam 全煤锚杆支护在特厚煤层宽断面巷道的应用
- Analysis on suitability of mini type hydraulic powered caving support fro deep inclined special thick seam mining 急倾斜特厚煤层开采微型放顶煤支架适应性分析
- Mine pressure behave law of fully mechanized caving and mining face in special thick seam of Tingnan Coalmine 亭南煤矿特厚煤层综放工作面矿压显现规律
- Practice on trial mining in special thick seam with soft roof, soft coal, soft floor, high inclination, rich water and high gass under nappe 推覆体下大倾角、富水、高瓦斯、特厚三软煤层开采实践
- special thick seam mining 特厚煤层
- special thick seam 特厚煤层
- thin and thick seam with steep dip 急倾斜较薄厚煤层
- Fast equipment removing technology of fully mechanized top coal caving mining face in two hard and special thick seams of Pingshuo mining area 平朔矿区两硬特厚煤层综放工作面快速回撤工艺
- Usually for mining maximal coal resources,repeated mining is used especially in specially thick coal seam. 为了最大限度的开采煤炭资源,通常进行复采,尤其是特厚煤层。
- Approach on mining processing in steep dip middle - thick seam 关于急倾斜中厚煤层开采工艺的探讨
- Combining with the actual situation in Qianqiu coal mine, the technology for comprehensive gas treatment in spontaneously inflammable and specially thick coal seam is introduced. 结合千秋煤矿实际情况,介绍了易自燃特厚煤层瓦斯综合治理技术。
- Studies on subsurface-flow wetland treatment system for special thick oil production wastewater from Liaohe oilfield. 辽河油田超稠油废水潜流湿地处理系统研究。
- New Mining techniques and equipments are utilized to raise the production and efficiency with longwall mining in thick seam. 为了提高中厚煤层长壁综采的高产高效,采用了新的开采技术工艺和设备,达到了预想的目的。
- The utilization of the processes will enable to manufacture the thick and special thick panels. 蒸汽喷射热压法的应用,将使厚、特厚板及低密度板的制造成为可能。
- There was a steep climb on the road out of town. 市外公路上有一处很陡的上坡路。
- An initial mining depth in the thick seam or a depth of a full seam cut will cause an obvious increasing in crack height and also in horseshoe distribution. 增大重复开采厚度以提高采煤工效和矿井经济效益;