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delivery system | |||
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delivery system |
运载系统: 35 phrases in 10 subjects |
Animal husbandry | 1 |
Aviation | 10 |
Electronics | 2 |
Explosives and Explosive Ordnance Disposal | 1 |
Nautical | 1 |
Space | 15 |
Technology | 2 |
Telecommunications | 1 |
United Nations | 1 |
United States | 1 |