专业安装人员qualified installation person 空调器的室外机组不应占用公共人行道，沿道路两侧建筑物安装的空调器其安装架底（安装架不影响公共通道时可按水平安装面）距地面...
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大部分建筑技术的产品由专业安装人员向分销商购买。
Most building-technology products are bought by professional installers from distributors.
同时，坐便器的安装也有一定的要求，要由专业安装人员安装。
At the same time, the installation of Toilet have certain requirements, it is necessary to install by professional installers.
防盗警报应当由专业人员安装。
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