| 1. | Ground water is usually removed by man through wells . 地上水一般是由人们从井里汲上来。 |
| 2. | Ground waters originating in different beds commingle . 来源于不同层位的地下水相互混合。 |
| 3. | This solution describes a spreading of a ground water mound . 这个解描述地下水丘的扩展。 |
| 4. | Ground water is found widely . 地下水分布广泛。 |
| 5. | Ground water is also obtained for human use by sinking wells . 人们也通过挖井来获取地下水以供使用。 |
| 6. | Recovery of ground water may require especially delicate tactics . 利用地下水,需要有特别完善的方案。 |
| 7. | Seepage from land fills can pollute ground water or surface water . 填土的渗漏可能污染地下水和地面水。 |
| 8. | The flow of ground water is toward streams, lakes, or oceans . 地下水经流的方向是朝向河流、湖泊或海洋的。 |
| 9. | Slow degradation of ground water quality may result from repeated use . 循环使用地下水可以导致缓慢的水质降低。 |
| 10. | The romans did not trust ground water since it was usually contamianted . 由于地下水常遭污染,罗马人不相信它。 |