您要查找的是不是：
- Research result shows that controlling blasting technique is feasible to improve gas drainage under suction in hardness and low dialyzing coal bed. 研究表明，该技术用于坚硬低透气煤层，提高矿井瓦斯抽放率是可行的。
- Experiment and Application of Roof High Location Strike Drilling Hole and Gas Drainage under Suction Technology 顶板高位走向钻孔抽放瓦斯技术的试验及应用
- Testing research of improving mine gas drainage under suction by controlling blasting to cause crack 控制爆破致裂提高矿井瓦斯抽放率试验研究
- 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
- gas drainage under suction 瓦斯抽放
- 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。
- Discussion about handling the gas in goaf of working faces by high drainage under suction 利用高位抽放处理工作面采空区瓦斯的探索
- gas drainage under section 瓦斯抽放
- Transforming Mine Gas Drainage System and Raising Gas Drainage Rate? 粉尘作业人员的饮食要注意什么?
- One of the major problems is that the designed gas drainage schemes have no scientific theon basis. 但是瓦斯抽放方案设计没有科学的理论依据是目前存在的主要问题之一。
- A kind of hydraulics system for CKS-I hydraulic gas drainage drilling rig was designed. 介绍了一种自主设计的CKS-I型全液压瓦斯抽排放钻机的液压系统。
- In recent time, peritoneal drainage under local anesthesia for critically-ill premature infants with complicating perforation of necrotizing enterocolitis has had good results. 近年来学者应用腹腔液引流术治疗患有坏死性肠炎穿孔之极低体重早产儿，预后颇佳。
- The practice of gas measuring and gas drainage when shaft developed through gasy seams in Hudi mine is introduced. 介绍了胡底煤矿在竖井开凿遭遇高瓦斯煤层时,进行瓦斯测定和瓦斯抽排的工程实践。
- Objective To study the clinical effects of treating traumatic subarachnoid hemorrhage by lumbar subarachnoid continuous drainage under controlling intracranial pressure. 目的探讨颅内压控制下持续腰大池引流对蛛网膜下腔出血的治疗效果。
- In order to obtain a good result of gas drainage in gob roof, the control methods of gas from goaf are discussed. 摘要为了在采空区顶板实施瓦斯抽放技术获得较高的瓦斯抽放效果，对采空区瓦斯治理方法进行了探讨。
- HDPE with fire retardance and antistatic property has been developed and used to make gas drainage pipe in the coalseams. 研制了具有阻燃及抗静电性能的HDPE,并将其用于制作煤层瓦斯抽放管。
- 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。
- Through the testing research about gas drainage on outsize coal sample, the relativity of coal mass deformation and drainage quantity &time is opened out. 通过大煤样的瓦斯排放试验研究,揭示了顺序加载与逆序加载下的煤体变形与瓦斯排放量以及排放时间的相关性。
- The paper describes the determination of rational location of high-located gas drainage roadways in Laowuji Mine of Panjiang Coal & Electricity (Group)Company. 介绍了盘江煤电(集团)公司老屋基矿高位瓦斯抽放巷道合理位置确定的有关情况。
- 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。
