Objective To introduce ward calling system based on power line communication.
目的：介绍一种基于低压电力线通信的病房呼叫系统。
Main Application: Suitable for hanger, hang, communication cable, overhead power line and fixing subject etc.
主要用途：适用于吊架、悬挂、通讯电缆、架空电力线以及固定物件等。
Main Application: Suitable for hanger, hang, communication cable, overhead power line and fixing subject etc.
主要用途：适用于吊架、悬挂、通讯电缆、架空电力线以及固定物件等。
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