Indoor cabling rack是什么意思

用法例句

This paper introduces the designs of main risers and indoor pipe-lines of household metering central heating systems,analyses their advantages and disadvantages,points out the main points of design and installation of valves and heat meters.

从主立管系统和室内管线系统两个方面介绍分户热计量系统的几种设计形式 ,并分析每种形式优缺点 ,同时指出了阀门、热表等附件设计安装要