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| 铅垂垂线: 34 phrases in 11 subjects |
| Architecture | 1 |
| Earth sciences | 1 |
| Engineering geology | 1 |
| General | 4 |
| Geophysics | 1 |
| Hydroelectric power stations | 5 |
| Hydrology | 1 |
| Oil / petroleum | 1 |
| Space | 2 |
| Technology | 16 |
| Tools | 1 |
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