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| dispositivo de seguridad | |||
| aparato de protección | |||
| dispositivo de protección | |||
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safety device : 31 phrases in 10 subjects |
| Chemistry | 2 |
| Coal | 1 |
| Electric traction | 1 |
| Environment | 4 |
| Health care | 2 |
| Hobbies and pastimes | 1 |
| Industry | 3 |
| Labor law | 4 |
| Mechanic engineering | 6 |
| Transport | 7 |
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