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- ELEMENTARY TALK ON MANAGEMENT OF THE GAS FROM WORK FACE OF INTEGRATED RELEASE TOP COAL IN HIGH GAS THICK COAL BED 浅谈高瓦斯厚煤层综合放顶煤工作面瓦斯治理
- In Three Thick Coal Bed, Soft-bed Along Street Known to Explore Feasibility of Water Injection-gas Dust 三软厚煤层沿底掘巷注水防瓦斯防尘可行性探讨
- Factor Analysis and Prevention of Caving in Front of Supports at Fully Mechanized Caving Coal Face of Large Inclination Thick Coal Bed 大倾角较薄厚煤层综放工作面架前冒落因素分析及防治
- Mining Practice in Fully Mechanized Caving Coal Face of Hard Roof, Soft Coal, Soft Bottom, and Large Inclination Thick Coal Bed 坚硬顶板、软煤、软底大倾角较薄厚煤层综放工作面的开采实践
- thick coal bed 厚煤层
- the cover thick coal bed 较薄厚煤层
- It is a new way of the utilization of coal bed gas. 为井下抽放煤层气的利用提出了一条新的途径。
- High Yield and High Efficency Stoping Technology of Light-duty Support for Caving Coal in the Steeply Inclined and Much Thicker Coal Bed 急倾斜特厚煤层轻型支架放顶煤回采工艺
- Coal Bed Methane Drilling and Completion Technology in Western Basin of U.S. 美国西部盆地煤层气钻井和完井技术。
- 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。
- Preliminary research on structural law of coal bed beneath nappe in No. 对新集二矿推覆体下煤层构造规律进行了初步研究。
- Water-coal mixture burst is a new mine disaster in exploiting steeply inclined thick coal seam mining. 摘要急倾斜厚煤层开采时发生的水煤体溃泄是一种新的矿井灾害。
- Graphite deposit of Heye was formed by metamorphism of the Permian coal bed. 荷叶石墨矿是由二叠系煤层变质而成的石墨矿床,石墨与煤呈同层异矿关系。
- For decades the thick coal seams underneath it made Saarland a pawn in the power-games of Germany and France. 几十年来,萨尔州地下厚厚的煤层使得该州成为德国和法国权利游戏中的有利工具。
- When the organic fragments are abundant,then low ash,thick coal seams can be formed as allochthonous coal. 由于有机碎屑物质的密度低,在二次搬运和沉积过程中经过重力分异,有机碎屑通常富集在扇体顶部,形成异地煤层。
- The safety system of extremely thick coal seam is built and the extremely thick coal seam with coal bumping tendency in Qianqiu coal mine is extr... 在此基础上建立了适合义煤千秋矿巨厚煤层冲击地压防治的安全开采体系;成功地进行了巨厚煤层的综放开采;从而为有冲击倾向巨厚煤层的安全开采提供了成功范例.
- Its main mineable coal seam belongs to very thick coal seam.The coal seam texture and coal rank configuration are generally very complex. 主采煤层属巨厚煤层,其煤层结构和煤种结构一般都很复杂,按不同煤种进行分层开采,有利于煤炭资源合理利用。
- Several coal beds are developed in backswamp deposits. 河漫沼泽上发育多套煤层。
- The equipment of mining overall height of thick coal seam in one times in Daxing Coal Mine and experiences of production manage am introduced. 介绍了大兴矿厚煤层一次采全高回采工作面的装备情况及生产管理方面的经验。
- For measuring exactly on gas content of coal bed,required high core recov ery and short time to hoisting and loa ding. 为了准确测定煤层含气量,要求取心作业必须有高的收获率和尽可能短的提钻及出筒装罐时间。
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- 深远海浮式风电平台 - deep-sea floating wind power platform
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- 京雄高速公路 - Beijing-Xiongan expressway
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- 农业及相关产业增加值 - the added value of agriculture and related industries