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| 31. | water detection appratus |
| 地下水探测仪 |
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| 32. | ground water protection |
| 地下水保护 |
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| 33. | ground water supply |
| 地下水供应 |
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| 34. | degree of mineralization of ground water |
| 地下水矿化度 |
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| 35. | groundwater drainage works |
| 地下水排水工程 |
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| 36. | perched ground water |
| 悬着地下水 |
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| 37. | seepage action of ground water |
| 地下水渗流 |
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| 38. | direction of groundwater flow |
| 地下水流向 |
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| 39. | available ground water |
| 有效地下水 |
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| 40. | loss of underground water |
| 地下水损失 |
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