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- 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
- steep special thick seam 急倾斜特厚煤层
- special thick seam 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
- 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。
- 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。
- 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。
- 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;
- 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。
- 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。
- Shotholes are prepared by powerful drills. The drills may be mounted on mobile platforms, where an unusually thick seam is being worked in two benches; the bulldozer clearing the upper one gives some idea of the height. 炮眼预先用功率强大的凿岩机钻好。凿岩机安装在可移动工作平台上--较厚的矿层都分为两个台阶开采，推土机清理上层台阶形成一定的高度。
- Based on the recent years mining practice,study the technical management problems in thick seam mining,accumulate some actual experiences in roof management in thick seam,adopt the efficient technical measures and achieve the good result. 通过多年的开采实践 ,作者着重研究了厚煤层开采的技术管理问题 ,在厚煤层开采顶板管理方面积累了一些实际经验 ,采取了行之有效的技术措施 ,收到了较好的效果
- This machine utilizes bobbin winder and big rotary shuttle, especially available for sewing thick seaming work piece. 采用全回转式的大釜与大梭仔，适合粗线之车缝。
