safety device : 24 phrases in 10 subjects |
Automated equipment | 1 |
Chemistry | 1 |
Construction | 4 |
Electric traction | 1 |
Environment | 1 |
Labor law | 1 |
Mechanic engineering | 4 |
Medical appliances | 2 |
Natural resourses and wildlife conservation | 1 |
Transport | 8 |