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| contour of groundwater table | |||
| groundwater contour | |||
| water-table contour | |||
| 地下水等水位线: 20 phrases in 6 subjects |
| Agriculture | 2 |
| Desert science | 1 |
| Electronics | 1 |
| Engineering geology | 4 |
| Oil / petroleum | 1 |
| Technology | 11 |
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