1)narrow coal pillar窄煤柱
1.Numerical simulation on the principle of supporting roadway with narrow coal pillar;窄煤柱护巷机理的数值模拟分析
2.In order to solve this problem,this paper proposes that narrow coal pillars are to be left to protect the main drift or roadways.针对薄煤层开采中,沿煤层开掘的巷道留煤柱护巷造成大量的煤炭储量浪费问题,提出留设窄煤柱维护大巷技术,巷道采用锚喷网支护,延长了矿井服务年限和提高了矿井整体效益,可在类似条件下推广应用。
英文短句/例句
1.Comprehensive Fire Prevention and Extinguishment Technology of Spontaneous Combustion Coal Seam in Fully-mechanized Coal Face with Narrow Coal Pillar自燃煤层窄煤柱综采工作面综合防灭火技术
2.Study on Deformation of Narrow Pillar of Roadway Driving Along Next Goaf of Full Caving Face and Its Control in Deep Coal Mine深井综放面沿空掘巷窄煤柱破坏规律及其控制机理研究
3.The Law of Ground Pressure and Itself Supporting of the Lane That the Narrow and Small Pillar Protected;窄小煤柱护巷的矿压显现规律及其支护技术研究
4.pillar of ground运输平巷上方的煤柱
5.The column stands on a narrow base.柱子竖立在狭窄的地基上。
6.The Stability Calculation of Slight Sections Column Pressed by Single-direction Eccentric Force;窄截面柱单向偏心受压时的稳定计算
7.Reinforcement Mechanism of Anchored Bolt for Coal Pillar and Analysis of Influence Factors of Pillar Strength煤柱锚杆加固机理与煤柱强度影响因素分析
8.Second Mining under Isolated Pillar Left by Wedge-pillar Mining Method刀柱复采跨隔离煤柱布置探索与实践
9.Study on the Reclimaning of Fault Waterproof Coal Pillar in Mafang Mine;马坊煤矿断层防水煤柱开采回收研究
10.Theoretical determination of the section coal pillar's reserve-width in medium thick coal seam中厚煤层区段煤柱留设宽度理论确定
11.Theory and practice of integrated pillarless coal production and methane extraction in multiseams of low permeability低透气性煤层群无煤柱煤气共采理论与实践
12.Analysis on Stability of Coal Pillar in Goaf Area of No.11 Seam in Tangshangou Mine唐山沟煤矿11号煤层采空区煤柱稳定性分析
13.long narrow area in which games like tenpin bowling and skittles are played（十柱及九柱滚木球戏[保龄球]等的长而窄的）滚道,球道.
14.A beam of radiant energy in the form of a narrow cone or cylinder.光线锥窄圆锥体或圆柱形的辐射性光束
15.Holder for sliding guide die sets for press tools-Die holder for back pillar sets (narrow)冲模滑动导向模座后侧导柱窄形下模座
16.Holder for sliding guide die sets for press tools-Punch holder for back pillar sets (narrow)冲模滑动导向模座后侧导柱窄形上模座
17.Clinical study of internal urethrotomy for urethral stricture by plsamakinetic经尿道等离子柱状电极治疗创伤性后尿道狭窄
18.Principal Technology Study on Pillor Mining under the System of Room and Pillor Mining;房柱式开采体系煤柱回收关键技术研究
相关短句/例句
narrow and small coal pillar窄小煤柱
1.During the period of caving coal mining,the coal tunnel pressure is greater with leaving narrow and small coal pillars,the support of driving tunnels along goaf is more difficult during the period of mining.在放顶煤开采过程中,留窄小煤柱全煤巷道矿压较大,沿空掘巷在回采过程中支护较为困难,运输顺槽支护方式的确定更为显得重要。
3)width of narrow pillar窄煤柱宽度
4)The optimized Width of Narrow Coal Pillar窄煤柱最佳宽度
5)driving along gob-side entry with small pillar窄煤柱沿空送巷
6)maintaining entries along gob edges沿空留窄煤柱掘巷
1.This paper raises out rock control principle in maintaining entries along gob edges of sub-level caving mining and bolt support,it is applied to engineering practice and technical and economic results are gained.提出了综放沿空留窄煤柱掘巷围岩控制原理和锚杆支护方案 ,并应用于工程实践 ,取得了良好的技术经济效
延伸阅读
胎圈过窄、子口窄、圈窄等分子式：CAS号：性质：又称胎圈过窄、子口窄、圈窄等。轮胎工业中指两胎圈宽度不一致的现象。
