安装惯例 meaning in Chinese

erection practice

Practice for design and installation of rigid pipe hangers
硬质管道支架的设计与安装惯例
Practice for underground installation of thermoplastic pressure piping
热塑压力管地下安装惯例
Practice for underground installation of thermoplastic pressure piping irrigation systems
热塑压力管道灌溉系统地下安装惯例
Practice for installation of thermoplastic pipe and corrugated tubing in septic tank leach fields
化粪池沥滤场用热塑塑料管和波纹软管安装惯例
Practice for subsurface installation of corrugated thermoplastic tubing for agricultural drainage or water table control
农业排水或地下水位控制用热塑塑料波纹管地下安装惯例

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