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| it is possible for two entirely different systems to be represented by the same block diagram | |||
| могут быть представлены: 37 phrases in 13 subjects |
| Aviation | 1 |
| Economy | 2 |
| Education | 1 |
| General | 5 |
| Law | 3 |
| Literature | 1 |
| Makarov | 6 |
| Mass media | 6 |
| Mathematics | 3 |
| Obsolete / dated | 1 |
| Patents | 4 |
| Programming | 3 |
| Scientific | 1 |