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| 连续永冻土带; 成片永冻层 (指极地地区永久冻结的土地) | |||
| 连续永冻带 (zone) | |||
| 成片永冻层 | |||
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continuous permafrost : 4 phrases in 2 subjects |
| Explosives and Explosive Ordnance Disposal | 1 |
| Technology | 3 |
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