data system | |
interntl.trade. | 数据系统 |
Raytheon : 31 phrases in 12 subjects |
Air defense | 3 |
Aviation | 1 |
Commerce | 1 |
Company name | 2 |
Construction | 1 |
Earth sciences | 1 |
Electronics | 12 |
General | 4 |
Space | 2 |
Technology | 1 |
Textile industry | 1 |
United States | 2 |