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ecphractic |
通 导 的 : 24 phrases in 10 subjects |
Astronautics | 1 |
Aviation | 2 |
Electronics | 3 |
Explosives and Explosive Ordnance Disposal | 2 |
Finances | 1 |
Hydroelectric power stations | 1 |
Project management | 3 |
Space | 7 |
Technology | 3 |
United Nations | 1 |