|
Control : 46 phrases in 14 subjects |
| Abbreviation | 22 |
| Aeronautics | 1 |
| Communications | 1 |
| Computer networks | 2 |
| Computers | 2 |
| Information technology | 1 |
| Mass media | 1 |
| Military | 6 |
| NASA | 1 |
| Nuclear and fusion power | 1 |
| Programming | 1 |
| Telecommunications | 4 |
| Transport | 2 |
| United States | 1 |