DIN EN ISO 17769-2-2012 液泵及其安装.通用术语.定义、量、字母符号和单位.第2部分:泵水系统(ISO 17769-2-2012).三种语言版本EN ISO 17769-2-2012
Liquid pumps and installation - General terms, definitions, quantities, letter symbols and units - Part 2: Pumping System (ISO 17769-2:2012); Trilingual version EN ISO 17769-2:2012