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f目录
摘要1Abstract2目录3第一章绪论5
11系统设计的背景512系统设计目的和意义513本文的主要工作614本章小结6第二章系统总体方案设计721系统总体设计思路7
211混凝土搅拌机组成7212系统控制方式的确定722系统需求分析723系统结构框图824本章小结9第三章系统硬件方案设计931PLC选择9311PLC概述9312PLC型号的选择r