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zero control : 31 phrases in 13 subjects |
| Automated equipment | 6 |
| Aviation medicine | 6 |
| Electrical engineering | 1 |
| Electronics | 1 |
| Energy industry | 3 |
| Gas processing plants | 1 |
| General | 2 |
| Makarov | 2 |
| Medical | 2 |
| Metrology | 2 |
| Programming | 3 |
| Radioengineering | 1 |
| Thermal engineering | 1 |