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| 冻土凡温度为负温或零温，并含有冰的各种土称为冻土。如果土中只有负温度而不含冰时则称为寒土 | |||
| 冻土 | |||
| 冻结土 | |||
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frozen earth : 8 phrases in 5 subjects |
| Bridge construction | 1 |
| Oil / petroleum | 1 |
| Rail transport | 1 |
| Refrigeration | 1 |
| Technology | 4 |
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