n.管系放样 piping layout: 管道布置; 管道平面布置图; 管路布置; 管系布置equipment and piping layout: 设备及管道布置flow diagram and piping layout: 流程图和管道布置图layout of utility piping for instrument: 仪表公用工程管线布置图oil piping layout: 油导管; 油管的布置下载手机词典可随时随地查词查翻译