易: easy安装: install; erect; fix; mount; ...的: 4次方是 The fourth power of 2 i ...部件: component; unit; parts; asse ...和: mix; blend管件: pipe fitting管道部件和管道: pipeline components and pipelines管道部件和管道综合: pipeline components and pipelines in general阀门和管件: ales and fittings; valves and fittings配管和管件: piping and fitting简易安装: simplified installation用于污水处理系统的部件和装置的评估: evaluation of components and devices used in wastewater treatment systems联管箱和管件: tubes headers and fitting管件安装: plumbing fitting存在的部件: existing part独立的部件: self-contained pack无效的部件: invalid part主要的部件: vital背面安装的: back-mounted表面安装的: surface mount低位安装的: low set; low-set地面安装的: surface-mounted顶部安装的: topmounted法兰安装的: flange-mounted工地安装的: field-erected; field-mounted; site-erected