Thus clays and shales tend to be impermeable . 因此粘土和頁巖就往往不透水。
The passage became absolutely impermeable . 過道完全不通了。
An impermeable cover is utilized to impound the stream . 用不透氣的覆蓋物把蒸氣蓋住。
The external layer of the skin is relatively impermeable to water . 皮膚的外層不透水。
On ground of raised beds, an impermeable cover is utilized to impound the steam . 在地面上高位栽培床用不透氣的覆蓋物把蒸氣蓋住。
The accumulation of oil is governed by lateral changes from permeable to impermeable facies . 石油的儲集是受從滲透到不滲透的巖相橫向變化控制的。
Oil is usually found in porous rock under a layer of impermeable rock which prevents it from escaping . 石油通常存在于多孔性的巖石中,上面覆蓋著不可滲透的巖層,使石油不致散失。
When rain falls, the loess particles on the surface layer swell and form a crust that is almost impermeable to water . 降雨時,表層的黃土粒就發(fā)生膨脹并形成一層幾乎是不透水的表皮。
Test method for impact of impermeable graphite materials 不透性石墨材料沖擊試驗方法