indoor installation meaning in English

室内装置

Outdoor or indoor installation and operation
室外或室内安装及操作
Letter boxes others than those with large opening - indoor installations
大开口除外的信箱.室内安装
Calculation of maximum external diameter of cables for indoor installations
户内装置用电缆最大外径的计算
Letter boxes with reduced capacity and with large opening for indoor installation - requirements and testing
室内安装用小容量大开口信箱.要求和试验
Lubricants for gas valves in indoor installation , gas distribution , and gas transportation pipe lines
室内设备煤气分配和煤气输送管道的煤气阀用润滑剂

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