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.The most frequent reaction causing the self - sealing of rocks with high secondary permeability is argillization.化学风化: 溶解 、 氧化 、 碳酸岩化 、 水合作用和水化作用.Chemical weathering: dissolution, ox...
...an untimely visit from the milkman...送牛奶的来得不是时候Have you paid the milkman this month?你这个月付款给送牛奶的人了吗?The milkman selected the spotted cows,from among a herd of two hundred.牛奶商从一群200头牛中选出有斑点的牛。The milkman selected the sp...