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| 泥质的 | |||
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pelitic schist : 30 phrases in 8 subjects |
| Bridge construction | 1 |
| Desert science | 2 |
| Earth sciences | 1 |
| Engineering geology | 4 |
| Geology | 1 |
| Hydroelectric power stations | 1 |
| Oil / petroleum | 8 |
| Technology | 12 |
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