safety device: 53 phrases in 15 subjects |
Chemistry | 2 |
Coal | 1 |
Construction | 4 |
Electric traction | 1 |
Environment | 4 |
General | 1 |
Health care | 2 |
Hobbies and pastimes | 1 |
Industry | 3 |
Labor law | 3 |
Mechanic engineering | 9 |
Medical appliances | 2 |
Natural resourses and wildlife conservation | 1 |
Technology | 6 |
Transport | 13 |