高温下的“测量清洁师”

Comment(s)打印 E-mail China.org.cn　 2017-08-10

图为清洁人员正在清洁瓷瓶。摄影师：沙益鹏

Technical workers measure the temperature of the electrical connections with a special thermometer. [Photo by Sha Yipeng/China.org.cn] 


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