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| 交错层 (指厚度 > 1mm 的交错地层) | |||
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| 交错层 | |||
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| 交错层 | |||
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cross -beds : 6 phrases in 5 subjects |
| Aviation | 1 |
| Bridge construction | 1 |
| Earth sciences | 2 |
| Technology | 1 |
| Textile industry | 1 |
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