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钻重 : 139 phrases in 10 subjects |
| Drilling | 37 |
| Earth sciences | 7 |
| Economy | 1 |
| Engineering geology | 8 |
| General | 8 |
| Mechanics | 4 |
| Oil / petroleum | 17 |
| Shipbuilding | 1 |
| Skydiving | 1 |
| Technology | 55 |
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