It describes the manufacture of a system for people aerial defence alert control based on people aerial defence alerts multi-working modes.
介绍了基于人防警报系统多种工作模式的情况下警报控制系统的研制。
It describes the manufacture of a system for people aerial defence alert control based on people aerial defence alerts multi-working modes.
介绍了基于人防警报系统多种工作模式的情况下警报控制系统的研制。
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