pillar write word line 柱状写字线
The results show that there are great differences in the stress of roadway surrounding rock, and the stress and strain in coal pillar while the fracture line of main roof locates in different places.
研究表明，基本顶断裂线位于不同位置时，巷道围岩应力、煤柱应力及应变差异较大。
If more risks are passed on to the pensioners, what is then the dividing line with the individual third pillar?
如果更多的风险传递给了领年金者，那么与个别第三支柱的分界线是什么呢？
In the plastic limit analysis, the wrinkler's plate is smartly analyzed in yield-line theory to get the critical compression strength of the coal pillar.
在分析过程中，利用机动法对温克尔地基板（弹簧支撑板）进行了塑性极限分析，得出了煤柱抗压强度的临界值。
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