The main functions, construction and system bus in the building visual talk back communication system were analyzed.

分析了楼宇可视对讲通信系统的主要功能、结构和系统总线。

youdao

The main functions, construction and system bus in the building visual talk back communication system were analyzed.

分析了楼宇可视对讲通信系统的主要功能、结构和系统总线。

youdao