系统安装工程 meaning in Chinese

systems installation engineering

Installation and acceptance specification for ammonia refrigeration system
氨制冷系统安装工程施工及验收规范
The check and evaluate standard for quality of letter tray conveyance system
信盒处理系统安装工程质量检验评定标准
Code for construction and acceptance of installation engineering of solar photovoltaic power system
太阳光伏电源系统安装工程施工及验收规范