首先，论文提出了一种基于低压电力线载波技术的总线式控制网络。
Firstly, this paper advanced a control system based on the low-voltage power line carrier.
本文给出了一个基于低压电力线载波技术的电参数测量仪的硬件系统。
The paper is about the hardware circuit & working principle of meter based on the low voltage power line carrier.
论文的主要内容包括以下几个方面：首先介绍了DTMF编解码技术和电力线载波技术。
The major content of this paper includes some following aspects: First, introduces DTMF coding technique and power line carrier technology.
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