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- high gas drainage method 高抽法
- 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。
- Application of gas drainage method with bore hole in face roof under condition of sliding roof in Gaocheng mine 顶板钻孔瓦斯抽放方法在告成矿的应用
- Technology Research of Gas Drainage Under Suction in High Suction Road Way at Combined Mining Caving Coal Face of High Gas in "Three Soft"Thick Seam "三软"厚煤层高瓦斯综放面高抽巷瓦斯抽放技术研究
- high gas drainage roadway 高抽巷
- Practice shows that this is a good drainage method. 实践表明这是一种较好的疏干方式。
- high gas drainage way 高抽巷
- Objective:To discuss the effect of high perianal abscess therapy by low resection and high drainage method. 目的:探讨低位切开高位引流术治疗高位肛周脓肿的疗效。
- Pneumatic conveying requires comparatively high gas velocities. 气力输送需要比较高的气体速度。
- 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。
- It proved that gas drainage with high position bores and elevation bores can both reduce laneway digging work and get fairly good gas extracting result. 实践表明高位抽放与仰角抽放方法相结合,既可减少钻场施工,又有较好的抽放效果。
- 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?
- Transforming Mine Gas Drainage System and Raising Gas Drainage Rate? 粉尘作业人员的饮食要注意什么?
- 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。
- Through the research of high gas and multi-water-bursting hazards prevention techniques in Jiaozuo coal mine regions, the mining coal method of caving working face is found. 通过对焦作矿区高瓦斯多水害防治技术研究,找出适合该条件下的炮采放顶煤模式的采煤方法。
- New gas drainage recovery method was studied and developed.Study on plunger lift technique with gas produced from in-situ wells were carried out with field experiments conducted, which proved that... 即本井气柱塞气举并进行了现场试验,取得了良好的效果,为油田部分低含水高气油比油井的开发和气井的排水采气提供了有效的举升技术支持。
- In this paper,the gas emission method of primary mining in high gas coal face are summarized systematically,which provides reterence for other similar coal mines. 本文系统地总结了淮南高瓦斯工作面初采期间瓦斯抽放方法,以供类似条件的矿井参考。
- Get through water releasing test, primarily proved that drainage method with tunnel in bedrock aquifer of Yuanbaoshan opencut mine is possible. 通过放水试验,初步证明元宝山露天矿基岩含水层采用巷道疏干的方法是可行的。
- 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。
- In the experiments, soil drainage method was used at Shaoxing and deep water method at Fuyang for early rice, and soil drainage method was adopted at both sites for late rice. 早稻试验在绍兴采用土壤排水,而在富阳采用深厚水层方法,晚稻试验两地都用土壤排水方法。