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- The testing research about enhancing permeability rate by hydraulic cutting seam on outsize coal sample is introduced. 介绍了特大煤样采用水力割缝提高瓦斯渗透率的实验研究。
- high-pressure abrasive hydraulic cutting seam technology 水力割缝技术
- Study on Utilizing the Hydraulic Cutting Seam Technology to Improve the Low Gas Permeability Coal Seam and Gas Drainage 利用水力割缝提高低透气性煤层瓦斯抽放的试验研究
- Experimental and Mechanism Study of Coal and Gas Burst in the Process of Hydraulic Cutting Seam 煤体水力割缝中瓦斯突出现象实验与机理研究
- Keywords low permeability coal seam;hydraulic cutting seam;bore;rate of gas permeability; 关键词低渗透煤层;水力割缝;钻孔;瓦斯渗透率;
- hydraulic cutting seam 水力割缝
- Grave protrusion coal seam tunnelling hydraulic cutting protrusion-dispelling measures is a new technology in the world. 严重突出煤层掘进水力掏槽防突措施在国际上是一种防突新技术。
- Effect of decouple coefficient, cutting seam width of pipe and material properties of pipe for rock damnification is tested and analysed. 介绍了岩石切缝药包爆破的作用原理,试验和分析了不偶合系数、切缝管切缝宽度、切缝管材质等有关参数对岩石断裂控制爆破的影响。
- Mainly by the Juma River, Yasumizu, Caohe, Longquan River, Tanghe, elimination River alluvial materials piled up after a pass made, hydraulic cutting, gully development. 主要由拒马河、易水、漕河、龙泉河、唐河、消河出山口后洪积物堆积而成,水力切割,冲沟发育。
- Hydraulic cutting excavating techniques realized nobody watch in the course of taking measures and increased the safety of the course of taking measures and excavating. 试验证明,水力掏槽措施卸压范围广、防突效果显著,同时水力掏槽掘进工艺实现了措施期间无人值守,提高了措施、掘进过程的安全性。
- Our main production of various kinds of rubber machinery production and sales, the main products: flat-panel curing press, open Lianjiao machine, mixer, hydraulic cutting machine, broken machines. 本厂主要生产各类橡胶机械的生产及销售,主要产品有:平板硫化机、开放式炼胶机,密炼机,油压裁断机,破碎机等。
- The paper analyzed the seaming mechanism of the cutting seam cartridge and introduced the manufacturing and filling operation technology of the cutting seam cartridge. 分析和讨论了切缝药包定向断裂控制爆破作用机理,及其与光面爆破的对比试验。
- cutting seam blasting of protecting borehole wall 切缝护壁爆破
- swing beam hydraulic cutting machine 摇臂式液压裁料机
- Research on hydraulic cutting technology for seam gateway with coal and gas outburst in potential 突出煤巷掘进水力掏槽工艺技术研究
- The building is made of hydraulic cement. 大楼是用水硬水泥建造的。
- The hydraulic lift is over there. 液压升降机在那儿。
- I haven't given up smoking but I'm cutting down. 我没有断烟,但是抽烟少了。
- People came in flocks to see the new hydraulic power station beside the dam. 人们成群结队地来参观水坝旁边新建的水电站。
- Drilling is cutting a hole with a drill. 钻削就是用钻头钻一个孔。