unsaturated rock

例句：

1. 1. The unsaturated rock is agood source of minerals.
   这种不饱和岩石是矿物的良好来源。
2. 2. The geologist foundthat the unsaturated rock was rich inoil and gas.
   地质学家发现这种不饱和岩石富含石油和天然气。
3. 3. The unsaturated rock is being used as a buildingmaterial.
   这种不饱和岩石正在被用作建筑材料。