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资源数据 |
resource data : 43 phrases in 12 subjects |
Air defense | 1 |
Aviation | 2 |
Business | 1 |
Desert science | 3 |
Earth sciences | 14 |
Electronics | 1 |
Information technology | 8 |
Space | 7 |
Technology | 2 |
Telecommunications | 2 |
United Nations | 1 |
United States | 1 |