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| gravel-bearing sand; pebbly sand | |||
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含砾砂 : 22 phrases in 7 subjects |
| Architecture | 2 |
| Drilling | 1 |
| Engineering geology | 3 |
| Geology | 1 |
| Hydroelectric power stations | 1 |
| Oil / petroleum | 1 |
| Technology | 13 |
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