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| 透性层｛土壤｝ | |||
| 透水土层 | |||
| 透水岩层; 渗透层 | |||
| 透水层 | |||
| 透水岩层; 透水地层 | |||
| |||
| 渗透层 | |||
| 渗透性地层 | |||
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permeable stratum : 5 phrases in 3 subjects |
| Engineering geology | 2 |
| Rail transport | 1 |
| Technology | 2 |
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