 |
master group
| information system
| master group | |
| space | 主群 |
| Information Systems | |
| IT | 信息系统 |
| org.name. | 信息系统 |
| information system | |
| busin. | 资料 系统 |
| environ. | 信息系统 |
| interntl.trade. | 情报资料系统 |
| multimed. | 信服系统 |
| stat. | 信息系统; 情报系统 |
| tech. | 指示系统 |
| |||
| 主群 | |||
| master group: 24 phrases in 6 subjects |
| Aviation | 3 |
| Electronics | 11 |
| Information technology | 1 |
| Space | 2 |
| Technology | 4 |
| Telecommunications | 3 |
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