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safety device : 55 phrases in 15 subjects |
Chemistry | 2 |
Coal | 1 |
Construction | 8 |
Electric traction | 1 |
Environment | 2 |
General | 3 |
Health care | 1 |
Hobbies and pastimes | 1 |
Industry | 4 |
Labor law | 3 |
Mechanic engineering | 7 |
Medical appliances | 2 |
Natural resourses and wildlife conservation | 1 |
Technology | 9 |
Transport | 10 |