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| 输沙 | |||
| 沙子采运; 沙子运输 | |||
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sand transport : 18 phrases in 7 subjects |
| Automobiles | 1 |
| Desert science | 9 |
| Drilling | 1 |
| Ecology | 1 |
| Engineering geology | 2 |
| Oil / petroleum | 1 |
| Technology | 3 |
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