1) ultra soft
极松软
1.
9 seam in Luling Mine have the features of low permeability, ultra soft, ultra thick and high outburst.
芦岭煤矿的8煤、9煤层具有低透气性、极松软、特厚、强突出等特性,在此类煤层掘进中石门揭煤现场施工,得出"预抽、骨架、固化、拦截、注水、排放"的6步揭煤法,解决了施工时冒顶严重、瓦斯事故多的问题,形成一套适合芦岭矿的石门揭煤综合安全防突技术。
2) especial incompact "three-soft" coal seam
极松散"三软"煤层
3) 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
5) extremely soft (soft) soil
极软(软)岩
1.
A great deal of experience in appraising pile\'s bearing capacity at extremely soft (soft) soil has been accumulated during civil engineering at Hefei.
合肥地区在工民建中积累了评价极软(软)岩桩基承载性能的经验,通过与桥基规范的计算比较和引用实际的市政工程检测与测试结果及工程使用效果,推广实践经验在市政工程中运用。
6) Loose floor
松软底板
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