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地下水 线 : 98 phrases in 10 subjects |
| Agriculture | 2 |
| Architecture | 1 |
| Bridge construction | 2 |
| Desert science | 2 |
| Electronics | 2 |
| Engineering geology | 13 |
| Hydroelectric power stations | 3 |
| Metallurgy | 1 |
| Oil / petroleum | 2 |
| Technology | 70 |
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