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position data | |||
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position data |
位置数据 : 19 phrases in 9 subjects |
Air defense | 1 |
Aviation | 7 |
Computer numerical control | 1 |
Earth sciences | 1 |
Electronics | 3 |
Explosives and Explosive Ordnance Disposal | 1 |
Information technology | 1 |
Space | 3 |
Technology | 1 |