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| primary water; primitive water | |||
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原始水 : 32 phrases in 10 subjects |
| Architecture | 1 |
| Desert science | 3 |
| Engineering geology | 2 |
| Environment | 1 |
| General | 1 |
| Geology | 3 |
| Metallurgy | 1 |
| Mining | 3 |
| Oil / petroleum | 2 |
| Technology | 15 |
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