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geographical center |
地理 中心 : 42 phrases in 14 subjects |
Aviation | 2 |
Business | 1 |
Desert science | 1 |
Earth sciences | 16 |
Economy | 1 |
Electronics | 3 |
Geology | 1 |
Geophysics | 5 |
Mathematics | 1 |
Russian language | 1 |
Securities | 1 |
Space | 3 |
Technology | 3 |
United States | 3 |