Installation of air-conditioning of workers is a pair of husband and wife, the husband outside the window aerial work, fasten seat belt end on by his wife, moored on themselves.Like this to install air conditioning, their pay is 100 yuan RMB.(安装空调的工人是一对夫妻，丈夫在窗户外面高空作业，妻子把安全带一端系在丈夫身上，一端系在自己身上。像这样安装一次空调，他们的报酬是100元人民币。)