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。
2
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？
3
An Olympic torch has pride of place in the middle of the room, photos line the walls and hundreds of notes cover the middle pillar of the Meihua Jiaren (Plum flower Family) Dumpling Restaurant.