Sometimes the flag on a pole fillipaway granula adhereto aquifuge of the original plate burning, and PS in print, original version, so that the plates appear an holdout. 有时一些不起眼的尘埃颗粒粘住晒版原版，隔在晒版原版和PS版之间，使印版不入现不吸墨的不满缺不背。
The in situ rock stress prevents the rise of confined water and water inrush for thick floor aquifuge,but for thin floor aquifuge the in situ rock stress wo. 介绍了水力压裂应力测量的原理和现场测量结果,论述了煤层底板隔水层带的阻水机理和承压水沿煤层上升的机理,以及原岩应力、水压与裂隙扩展的关系。