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- high gas seam 高瓦斯煤层
- Pneumatic conveying requires comparatively high gas velocities. 气力输送需要比较高的气体速度。
- Well, what the high gas prices have to do with a bottle of tequila? 高涨的油价和一瓶龙舌兰酒究竟有什么关系呢?
- According to the characteristics of the gas flow rule of high-technique gob in the high gas concentration coal seam,the gas drainage under section technology is safely and reasonably applied. 依据高沼气厚煤层一次采全高工艺采空区瓦斯流动特点,安全合理地采用顶板巷瓦斯抽放技术,有效地处理了工作面瓦斯超限问题,取得了安全生产双效益。
- At high gas velocities the circulation of solids becomes appreciable. 在高气速时,固体颗粒循环变得显著了。
- Soft Coal Seam Winning in High Gas Area 高瓦斯区松软煤层沿顶布巷综放回采
- However, in areas with weaker hydrodynamics, or stagnant area, the coal usually has high gas content. 相反,在水动力不活跃地区或滞流水区域,煤层气的含量就比较高。
- Direct expose to flame and high gas veloc-ity and high resistance to erosion-abtasion. 可直接接触火焰,耐高速气流冲刷,抗风蚀能力强;
- She is looking for a job in a tight economy, and the high gas prices are crimping her search. 她在收缩的经济中正找工作,而高油价让她的找工也受阻。
- Because of crack structure,high gas amount,concentrated stress,soft and broken coal,it's very difficult for tunneling. 巷道在掘进时由于受断裂构造的影响,瓦斯含量大,应力集中,煤体松软、破碎,掘进困难。
- Research on feasibility of electric submersible pump application in high gas oil ratio oil well in some oil field block is made. 针对部分高含气油藏的特点,探讨使用潜油电泵的可行性。
- Cinder cone volcanoes are formed when magmas with high gas contents and high viscosity are blown high into the air during an eruption. 火山渣锥火山是,当爆发时,高气体含量和高粘度的熔岩被喷发到空气中而形成的。
- Fast-forward to last year when, during record high gas prices, Kia launched its nearly full-size, seven-passenger Borrego. 快进到去年,在创纪录的高油价,起亚推出了近全尺寸7座博雷戈。
- Germany Fu Palace Hotel and the positioning and size, traffic and location, and future high gas traders, investors have been adding a lot of good. 因而德富宫大酒店的定位和规模、交通和位置、未来的人气和商气,被不少有眼光的投资者看好。
- A kind of technics of oil production with ESP in high gas oil ratio oil well is found to widen application range and fields of ESP. 找出一种适合潜油电泵在高油气比油井中应用的采油工艺,进一步拓宽潜油电泵的应用范围和领域。
- Deep-hole presplitting explosion in coal seams with high gas content and low permeability was numerically simulated and analyzed. 摘要针对高瓦斯低透气性煤层,对深孔预裂爆破进行了数值模拟分析研究。
- Mining high gas coal seam with enclosed mining method 封闭式采煤法开采高瓦斯煤层
- There are 42 mine wells in four major mine areas, Jixi, Hegang, Shuangyashan and Qitaihe, in Heilongjiang province, China, 70% of which are high gas mine wells. 黑龙江鸡西、鹤岗、双鸭山和七台河四大主要矿区有矿井42个,其中70%25都是高瓦斯矿井。
- On the basis of industry test,this paper analyses mining feasibility of applying roadway caving method and caving broken mechanism in high gas steeply indined medium coal seams. 在工业性试验的基础上,分析了在高瓦斯急倾斜中厚煤层中应用巷道放顶煤法开采的可行性和顶煤的破碎机理。
- Research on the features of the storage layer of coal gas seam and yielding 阜新盆地刘家区煤层气储层特征及产出特点