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инженерная система
| безопасности
| инженерная система | |
| gen. | 工程系统 |
| Безопасность | |
| corp.gov. | 保安 |
| безопасность | |
| gen. | 防务; 安; 可靠性; 保险 |
| environ. | 安全 |
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| 工程系统 | |||
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| 公用工程 | |||
| инженерная система: 14 phrases in 2 subjects |
| General | 12 |
| Technology | 2 |
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