Oblique roadway-caving mining in inclined or deeply inclined coal seam;
倾斜及急倾斜煤层伪斜巷道放顶煤采煤法
Based on the research method,the paper also studied effect of distance between transmitter and receiver on propagation loss and RMS time delay spread of the electromagnetic wave in idealization model of incline tunnel.
文章详细介绍了仿真研究斜井巷道中电磁波传播距离对多径衰落和RMS时延的影响所采用的方法——射线跟踪法的原理和射线跟踪过程中射线方向的判断及射线代表的场强值的计算,在此基础上,在理想化的斜井巷道模型中研究了接收机与发射机间的距离对电磁波衰落及RMS时延扩展的影响。
Numerical Simulation of Gas Distribution in a Declensional Ventilated Airway
倾斜巷道风流中瓦斯分布的数值模拟
Study on Gateway Top Caving Technology for Steep-inclined Coal Seam
急倾斜煤层巷道放顶煤回采工艺研究
Support Technology of Roadways Driving in Steep Middle Thick Coal Seam
急倾斜、中厚煤层巷道掘进支护技术
Supporting technology of cable anchor in high stressand great span and steeply inclined roadway
急倾斜高应力大跨度巷道锚索支护技术
Research on Repair Support of Fracture Zone in Steep Layer in Taiping Coalmine;
太平矿急倾斜破碎围岩巷道修复支护研究
Study on Technology of Pre-stressed Bolt (Cables) Supporting in Inclined Roadway;
倾斜煤层巷道预应力锚杆(索)支护技术研究
Numerical simulation study on the stability and bolting parameters of roadway in inclined coal
倾斜煤层巷道稳定性与锚杆支护数值模拟研究
ASYMMETRIC DEFORMATION MECHANISM WITHIN INCLINED ROCK STRATA INDUCED BY EXCAVATION IN DEEP ROADWAY AND ITS CONTROLLING COUNTERMEASURES
深部倾斜岩层巷道非对称变形机制及控制对策
Supports in large-sized raodways under complicated geological conditions in steeply inclined coal seams
急倾斜煤层复杂条件下大规格巷道的支护
A Research in Drift Layout of Mechanized Coal Face Panels in Gentle Dip,selfcombustible Thick Seams by Slice Mining
缓倾斜易自燃厚煤层分层开采综采采区巷道布置的探讨
Research on Destruction Mechanism and Supporting in Roadway of the Steep Coal Seam of Taiping Coal Mine;
太平矿急倾斜煤层回采巷道破坏机理与支护研究
Research of Visible System about Optimum Parameter of Oblique Longwall Layeway Disposal in Shendong Coal Mine Area;
神东矿区倾斜长壁巷道布置最佳参烽可视化系统研究
Study on Reasons of Rock Burst in Roadway and Prevention Technology of Steeply-inclined and Extremely Thick Coal Seam with Horizontally Slicing Way
急倾斜特厚煤层水平分层开采巷道冲击地压成因与防治技术研究
Study on Roadway Supporting Technology of Full-mechanized Sublevel-Top-Caving Mining for Steep Seam
急倾斜煤层水平分段综放开采巷道支护技术研究
Study on the Heat Exchange between the Wallrock and Airflow in Inclined Laneway
倾斜井巷围岩与空气间的热交换研究
Beveled-entry driveway. Bevel dimensions can be specified.
入口倾斜的车道可指定倾斜的尺寸。
Study on Technology of Top-coal Caving Mining of Lane Pillar in 3.5~10m Steeply Inclined Coal Seam;
3.5~10m急倾斜煤层巷柱式放顶煤开采技术研究
Improvement of Multi-level Upgraded Signal System of Tilted Double Hook Mine
倾斜井巷双钩多水平提升信号系统的改进
CopyRight © 2020-2024 在线英语词典[www.yycidian.com]版权所有 All Rights Reserved. ICP备案号:浙ICP备2024103067号