1) three soft
三软
1.
The management of large angle blasting mining working face on “three soft” conditions;
“三软”条件下大倾角炮采工作面的管理
2.
The paper describes the way of mine in "three soft" & "two high" coal seam in tongting colliery,and also makes analysis on the technical management and field control.
介绍了童亭煤矿“三软”“两高”煤层的开采方法及采煤工作面的地质概况,并针对技术管理和现场管理作了分析,提出了管理方法,解决了生产中的实际问题。
2) three-soft
三软
1.
To know the movement property of the top coal for a fully mechanized top coal caving face in "three-soft" seams, this paper used deep.
针对“三软”厚煤层在综放开采情况下的顶煤运移变形特征，采用深基点位移观测法在预采顶分层和一次采全高两种情形下对顶煤的变形运移特性进行了现场观测及对比分析，从中得出两种情形下顶煤运移特征的异同点。
3) three soft coal seam
三软煤层
1.
Numerical simulation for bolting net spray composite support of three soft coal seam tunnel
三软煤层巷道锚网喷联合支护的数值模拟
2.
Analysed the reason of roadway supporting problem,based on heave problem of roadway in three soft coal seam,depth of pressure-relief bore hole was optimizated with numerical simulation,specific solution was proposed,too.
分析了偃龙矿区软岩巷道难以支护的原因,针对三软煤层巷道底鼓问题,采用数值计算方法对底板卸压钻孔深度进行优化设计,并给出了具体的解决方案,即位于底板中部直径为150~300 mm的卸压钻孔,深度应大于巷道底板宽度的一半,小于锚索锚固段的作用范围。
6) Three-soft Coal Seam
"三软"煤层
1.
Discussion on Comprehensive Gas Outburst Control in Heading Face with Three-soft Coal Seam;
“三软”煤层掘进综合“防突”探讨
补充资料：甘油三软脂酸酯
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性质：见软脂精。
分子量：
CAS号：
性质：见软脂精。
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