农业机械化工程 Agricultural Mechanization Engineering

机械化工祖 machine wall

机械化工具 Machine Tools

微型机械化工程 [机] micro-mechanized engineering

微型机械化工程数据 [机] micro-mechanized engineering data ; Micro-mechanized Engineering Data Automated Logistics

机械加工自动化 Automation in Mechanical Working

石油化工机械厂 Petro-Chemical Machinery Plant ; Chemical Machinery Plant

化工机械 Chemical machinery ; Chemical Engineering & Machinery ; Chemical equipment

高度机械化的工厂 highly mechanized factory

机械化工类 PJX