This article gives the meaning of making the serial standards for the fabrication and installation of metal structure, the structure and composition of standard and its relationship with trade norm.
阐述了三峡工程金属结构设备的制造安装系列标准编制的意义、标准的结构和组成以及与行业规范的关系。
The composition and operational principle of an automatic frequency con version constant pressure water supplying system based on PLC and frequency convertor with serial communication are introduced.
介绍了一种基于PLC和变频器采用串行总线方式通讯的变频恒压供水系统的构成和工作原理。
The composition of MKS pressure control system, the communication commands and parameters of 651c controller and the method on building serial communication protocol macro are all introduced.
介绍了MKS压力控制系统的组成、651c控制器的通信命令参数、串行通信协议宏的构造方法。
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