1) mellow
[英]['meləʊ] [美]['mɛlo]
松软
1.
Deep-hole construction technology of gas drainage for single low-pervious and mellow thick coal seams with water
单一低透松软含水厚煤层瓦斯抽放深孔施工技术
2) Loose floor
松软底板
4) soft coal seam
松软煤层
1.
Study on fastly extincting burst technique when tunneling in soft coal seam
松软煤层巷道掘进快速消突技术应用研究
2.
Improving the penetrability of soft coal seam with self-excited oscillation water jet
自激振荡射流改善松软煤层渗透率的机理
3.
Based on analysis about status of coal seam infusion technology and soft coal seam preventing rib spalling technology and used coal’s failure mechanism、strength theory and coal’s wetting mechanism, the mechanism of shallow holes infusion at coal wall preventing rib spalling in soft coal seam was analyzed.
本文在分析国内外煤层注水技术和松软煤层防片帮技术的研究现状的基础上,运用岩石的破坏机理、强度理论和煤的润湿机理等理论知识,分析研究了松软煤层煤壁浅孔注水防片帮技术的机理,通过实验得出对松散煤体不同含水率条件下的力学性质的变化规律,并进行了现场工业性试验,验证了煤壁浅孔注水防止松软煤层煤壁片帮较好的技术效果。
5) loose ribs
松软两帮
补充资料：松软
1.松散绵软。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条