官方彩神app8下载Pic story of technicians specializing in air conditioner installation and maintenance

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Technician Gong Zhenhua installs an air conditioner in Beijing, capital of China, Aug. 1, 2019. Zheng Yabing and Gong Zhenhua are both technicians specializing air conditioner installation and maintenance. They install about 5000 air conditioners annually, and summer is the busiest time of year. (Xinhua/Cai Yang)

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