在他头顶的天花板上有一道很深的裂缝。There was a deep crack in the ceiling above him.他们头顶的水晶吊灯闪闪发亮.Crystal chandeliers glittered brightly above them.我们头顶的墙塌了下来，地下室里满是砖灰，我惊得说不出话来。My words were lost as the walls above us crashed down, fillin...
The most frequent reaction causing the self - sealing of rocks with high secondary permeability is argillization.这种发生频率很高的、使次生渗透性能良好的岩体产生自封闭现象的反应就是泥岩化.Besides the mentioned above, the mechanism of swelling rock argilliza...