 |
| safety first: 21 phrases in 14 subjects |
| Aviation | 1 |
| Electronics | 1 |
| Finances | 1 |
| General | 4 |
| Geology | 1 |
| Investment | 1 |
| Makarov | 1 |
| Mass media | 1 |
| Power system protection | 1 |
| Programming | 1 |
| Technology | 1 |
| Transport | 1 |
| Weapons of mass destruction | 5 |
| Wood processing | 1 |
|
| safety first: 21 phrases in 14 subjects |
| Aviation | 1 |
| Electronics | 1 |
| Finances | 1 |
| General | 4 |
| Geology | 1 |
| Investment | 1 |
| Makarov | 1 |
| Mass media | 1 |
| Power system protection | 1 |
| Programming | 1 |
| Technology | 1 |
| Transport | 1 |
| Weapons of mass destruction | 5 |
| Wood processing | 1 |