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| 碳酸盐类岩 | |||
| 碳酸盐岩 | |||
| 碳酸盐岩 | |||
| 碳酸盐岩 (石) | |||
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| 碳酸盐岩 | |||
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carbonate rock : 24 phrases in 3 subjects |
| Bridge construction | 1 |
| Desert science | 3 |
| Technology | 20 |
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