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极地登山方式 | |||
极系; 配极系 |
polar system : 36 phrases in 15 subjects |
Air defense | 2 |
Astronomy | 1 |
Aviation | 1 |
Chemistry | 2 |
Cryosphere | 1 |
Earth sciences | 1 |
Electricity | 1 |
Electronics | 2 |
General | 2 |
Navigation | 1 |
Shipbuilding | 1 |
Space | 7 |
Surveying | 1 |
Technology | 11 |
Telecommunications | 2 |