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水 套管 : 82 phrases in 14 subjects |
| Architecture | 3 |
| Automobiles | 1 |
| Chemistry | 1 |
| Drilling | 18 |
| Earth sciences | 6 |
| Engineering geology | 2 |
| General | 1 |
| Geophysics | 2 |
| Metallurgy | 2 |
| Oil / petroleum | 11 |
| Rail transport | 1 |
| Refrigeration | 1 |
| Stationery | 1 |
| Technology | 32 |
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