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- thickness of top coal 顶煤厚度
- The movement of top coal and top roof is discussed with the data observed from the caving mining of deeply inclined thick coal seam with horizontal section in Zhaogezhuang colliery of Kailuan Group. 就开滦集团赵各庄矿在急倾斜厚煤层采用水平分段开采过程中的现场观测,探讨顶煤和顶底板运移。
- Thickness of Top Silicon Film - The distance found between the face of the top silicon film and the surface of the oxide layer. 顶部硅膜厚度-顶部硅层表面和氧化层表面间的距离。
- The results also show that the tree species,number of germinant plants and the number of surviving plants are very different with the different covering thickness of top soil. 表土的不同铺撒厚度在木本植物出现的种类、出芽个体数、生存个体数等方面都表现出明显的差异性。
- The law of top coal movement on a fully mechanized longwall face with top coal caving wasanalysed thoroughly on the basis of field observation andfinite element calculation. 本文根据现场观测、数值计算以及理论分析,详细阐述了放顶煤采场的顶煤变形运动规律,指出了顶煤变形运动可划分成四个区:顶煤变形区,压裂区,松动区和放落区。
- The beam has a thickness of 3 inches. 这根梁厚3英寸。
- The critical safety thickness of the top pil. 根据失稳条件确定了顶柱的临界安全厚度。
- The coal seam of No. 5102 face in Wuyang coal mine is steep, soft, and undulate.Aiming at this problem, the displacement and stress of top coal, roof and floor were researched by using UDEC software. 摘要针对五阳煤矿5102工作面倾角大、煤层松软、煤层起伏大、综放开采的条件,利用UDEC数值模拟软件分别通过沿工作面走向和倾向剖面建立模型,对顶板(煤)、底板的位移和应力变化进行了研究。
- A single thickness of a split hide. 皮厚一层被剥下的皮的厚度
- Based on the gushing of gas, crack of top coal and "O" circle theory, the paper brings up the design for gas drawing and ventilation method, and designs the extraction method for high output workface. 为了解决影响实现万吨工作面的问题,通过对瓦斯涌出的分析,基于顶煤裂隙分布发育规律及“O”圈理论设计了瓦斯抽放及通风排瓦斯方式,设计提出了实现高产高效工作面的回采工艺。
- Plenty of top brass attended the ceremony. 有很多大官儿出席了典礼。
- We are in the thick of examinations. 我们正处在考试最紧张的时刻。
- Safety thickness of top and foot walls 顶底板安全厚度
- FRACTAL STUDY ON BLASTING ENERGY OF TOP COAL 综放顶煤爆破能量的分形研究
- The curve fractal of top coal displacement 顶煤位移曲线的分形特征
- I can't come out at present. You can see I'm in the thick of all this work. 我现在不能出去,你看得出我工作正紧张。
- deformation and movement regularity of top coal 顶煤运移规律
- The thickness of sima is not easily measured. 硅美圈的厚度是不容易测量的。
- rational sublevel height of top coal 合理顶煤分段高度
- So that the thickness of silk thread will be even. 这样丝的粗细就均匀了。