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| 地质资料 | |||
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| 地质材料; 地质资料 | |||
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| 地质资料 | |||
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| 地质材料; 地质资料 | |||
| geological materials: 5 phrases in 3 subjects |
| Bridge construction | 1 |
| Earth sciences | 2 |
| Technology | 2 |
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