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E-mail Xinhua, February 15, 2022Aerial photo taken on Feb. 13, 2022 shows a mobile cabin PCR (polymerase chain reaction) laboratory in Debao County of Baise, south China's Guangxi Zhuang Autonomous Region. In recent days, mobile laboratories and air-inflated laboratories have been put into use in order to improve the efficiency of COVID-19 nucleic acid testing in Debao County. [Photo by Cao Yiming/Xinhua]

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