Photo taken on Nov. 5, 2021 shows a mobile laboratory for nucleic acid tests in Harbin, northeast China's Heilongjiang Province.Photo:Xinhua
Photo taken on Nov. 5, 2021 shows a mobile laboratory for nucleic acid tests in Harbin, northeast China's Heilongjiang Province.Photo:Xinhua
Medical workers work at a mobile laboratory for nucleic acid tests in Harbin, northeast China's Heilongjiang Province, Nov. 5, 2021.Photo:Xinhua
A medical worker talks with a colleague inside an air-inflated film chamber of a mobile laboratory for nucleic acid test in Harbin, northeast China's Heilongjiang Province, Nov. 5, 2021.Photo:Xinhua
A medical worker works at a mobile laboratory for nucleic acid test in Harbin, northeast China's Heilongjiang Province, Nov. 5, 2021.Photo:Xinhua
Photo taken on Nov. 5, 2021 show air-inflated film chambers of a mobile laboratory for nucleic acid test in Harbin, northeast China's Heilongjiang Province.Photo:Xinhua
Medical workers work inside an air-inflated film chamber of a mobile laboratory for nucleic acid test in Harbin, northeast China's Heilongjiang Province, Nov. 5, 2021.Photo:Xinhua
A medical worker works inside an air-inflated film chamber of a mobile laboratory for nucleic acid test in Harbin, northeast China's Heilongjiang Province, Nov. 5, 2021.Photo:Xinhua
Medical workers work inside an air-inflated film chamber of a mobile laboratory for nucleic acid test in Harbin, northeast China's Heilongjiang Province, Nov. 5, 2021.Photo:Xinhua