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| 缓 流: 97 phrases in 20 subjects |
| Agriculture | 1 |
| Automobiles | 3 |
| Bridge construction | 2 |
| Clothing | 1 |
| Desert science | 2 |
| Drilling | 2 |
| Earth sciences | 3 |
| Electronics | 3 |
| Engineering geology | 4 |
| Finances | 3 |
| General | 3 |
| Hydroelectric power stations | 8 |
| Metallurgy | 1 |
| Oil / petroleum | 6 |
| Project management | 1 |
| Securities | 5 |
| Shipbuilding | 1 |
| Space | 1 |
| Technology | 46 |
| Textile industry | 1 |
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