机台的主要仪表由压缩机空气压力表、冷媒高压表、冷媒低压表组成；
Machine main instrument is composed of a compressor air pressure gauge, pressure gauge, coolant cooling medium low pressure gauge;
介绍一种低压电力用户远程自动抄表系统，给出了该系统的结构框图，简述了其工作原理与系统的功能特点。
A remote automation meter data reading system for low voltage electric power user is introduced. It gives configuration block diagram, principle and system characteristic.
分析了集中器在低压电力线载波集中抄表系统中的功能，详细介绍了集中器的软、硬件结构原理及具体实现。
This paper analyzes the structure of the automatic meter reading system and the functions of concentrator in this system, de-tails the structure of hardware and software of the concentrator.
低压电力线载波远程抄表技术是一项有广泛应用前景的新技术。
Remote auto meter reading technology with low voltage power lines carrier is a new technology which has a wide application foreground.
本文就低压电力线扩频载波技术及其在自动抄表中的应用进行了研究。
The technology of low voltage powerline carrier spread spectrum communication and the auto meter reading system based on it are introduced in this paper.
该系统具有成本低、易实现等特点，是一种可以用于实现自动抄表的经济可靠的低压电力线载波通信系统。
This system is easily to achieve by using low cost hardware and an economical communication scheme to realize AMR on low-voltage power line.
以电能表系统为中心，通过其载波接口，三表数据以低压电力载波方式传输到区内集中器。
The power meter is designed to have the carrier interface through which the three meter's data is transmited into the concentrator by the way of low power line carrier.
低压电力线自动抄表系统主要由采集电能表信息的集中器、信道和主站等设备组成。
Automatic meter reading system on low voltage power line is composed of devices collecting the information of ammeter, channels and web servers.
本文首先对低压电力线载波抄表系统进行了介绍，分析了其系统结构和网络拓扑结构，并对其应用的中继技术做了简要的说明。
Firstly, the L-PLC automatic meter reading system is introduced, and the network topology of this system is analyzed. Then we make a brief description of relay technology which applies to this system.
本文首先对低压电力线载波抄表系统进行了介绍，分析了其系统结构和网络拓扑结构，并对其应用的中继技术做了简要的说明。
Firstly, the L-PLC automatic meter reading system is introduced, and the network topology of this system is analyzed. Then we make a brief description of relay technology which applies to this system.
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