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| Portuguese | English |
| acidentes graves | major accident |
| acidentes graves | major accident An unexpected occurrence, failure or loss beyond normal or specified levels with the potential for harming human life, property or the environment |
| Gabinete dos Riscos de Acidentes Graves | Major-Accident Hazards Bureau |
| risco de acidente industrial grave | major industrial accident hazard |
| Sistema de Comunicação de Acidentes Graves | major-accident reporting system |