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| engineered safety systems | |||
| safety system A unified, coordinated assemblage or plan of procedures and devices intended to lower the occurrence or risk of injury, loss and danger to persons, property or the environment; safety system | |||
| security systems | |||
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| back-up system | |||
| safety system | |||
| safety systems | |||
| sistemas de segurança: 100 phrase in 30 subjects |