 |
| |||
| horizontal redundancy check | |||
| transverse check; vertical check | |||
| поперечный контроль: 17 phrases in 11 subjects |
| Communications | 1 |
| Computer networks | 1 |
| Computers | 2 |
| General | 1 |
| Information technology | 2 |
| Mass media | 3 |
| Metallurgy | 2 |
| Polygraphy | 1 |
| Programming | 1 |
| Technology | 2 |
| Telecommunications | 1 |