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| infrastructure and security systems (We began to expand our line of business related to the development of infrastructure and security systems for amusement parks. Alexander Demidov); infrastructure, safety and security systems (Infrastructure safety and security systems includes, passenger screening and scanning system, cargo inspection system, secure ... Alexander Demidov) | |||
| системы жизнеобеспечения и безопасности: 2 短语, 2 学科 |
| 编程 | 1 |
| 英国（用法，不是 BrE） | 1 |