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- Study on Strata Behavior and the Top Coal Movement Law in Fully-mechanized Top-coal CavingFace in Thick Coal Seam With Dirt Band 含夹矸层厚煤层综放面矿压显现及顶煤运移规律研究
- Coal seam with dirt band 含夹矸层煤层
- features of coal seam with middle band 夹矸层特征
- The main coal seam of Taiping colliery is 11~# coal seam with a thickness of 1.5 m. 太平煤矿主采11%23煤层;煤厚1.;5 m
- 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.
- The measures that should be adopted in water-pouring for coal seam with worse penetrability, hygroscopicity and wettability are expounded. 阐述了对渗透性、吸水性和湿润性较差的煤层进行注水时应采取的措施。
- The equation for methane storage and migration in compressible coal seam with double pores and the numerical analogue method were set up. 建立了双重孔隙、可压密煤层甲烷储运方程和数值模拟方法，模拟结果表明，解吸时间控制吸附甲烷的涌出。
- Gas drainage in high gassy coal seam with low gas permeability is always an hard solved significant technology problem in the process of safety production. 高瓦斯低透性煤层的瓦斯抽放,一直是煤矿安全生产过程中的重大技术难题。
- This article recommends a mining technology for thin coal seam with mixed mining,exceeding length and double unit face mining method innovated by Tianchen coal mine. 本文介绍了田陈煤矿创新的综采与普机采混合、工作面超长布置、对拉、旋转调采、矩形和梯形不规则形状的薄煤层开采技术;
- 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。
- His clothes are covered with dirt. 他的衣服上沾满尘土。
- Many modelling results have showed that the resistivity curves reflect obviously the variation of coal thickness,which are enabled to measure the coal seam with the thickness mors than 0 8m. 结果表明，电阻率曲线对煤厚变化反映明显，能探测厚度大于0．8m的煤层。
- The windows were encrusted with dirt. 窗户上覆盖了一层灰尘。
- To solve strata pressure control of shallow coal seam with thick sand and thin bedrock, in-situ observation was carried out in Baoshan mine 6101 fully mechanized coalface, which is the first coalface. 摘要为解决厚砂层薄基岩浅埋煤层矿压控制问题，对宝山煤矿6101综采工作面（首采）进行现场实测。
- To smear or soil with or as if with dirt. 弄脏用或似用污泥涂抹或弄脏
- His clothes were covered with dirt. 他的衣服蒙上了灰尘.
- Finish filling the hole with dirt and water again. 完成灌浆孔用泥土和水。
- The floor was covered with dirt. 地板上全是污物。
- The men filled in the hole with dirt. 那些人用泥土把洞填满了。
- outburst coal seam with low gas permeability 低透气性突出煤层
