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| 寒冷地区 | |||
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cold region : 16 phrases in 8 subjects |
| Agriculture | 3 |
| Aviation | 1 |
| Bridge construction | 1 |
| Earth sciences | 6 |
| Hydroelectric power stations | 2 |
| Oil / petroleum | 1 |
| Rail transport | 1 |
| Technology | 1 |
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