A staff member measures the body temperture of a truck driver at the entrance of the Pinggu Mafang transfer storage and transportation station for fruits and vegetables entering Beijing in Pinggu District, Beijing, capital of China, June 25, 2020. The transfer storage and transportation station, which includes disinfection area, turnover area, temporary storage area and closed-off management area, was put into use recently. The carrying capacity of trucks here can reach more than 50 vehicles, and the daily transit volume of fruits and vegetables can reach more than 1,000 tons. (Xinhua/Ren Chao)

A staff member transfers vegetables at the preservation warehouse of Pinggu Mafang transfer storage and transportation station for fruits and vegetables entering Beijing in Pinggu District, Beijing, capital of China, June 25, 2020. The transfer storage and transportation station, which includes disinfection area, turnover area, temporary storage area and closed-off management area, was put into use recently. The carrying capacity of trucks here can reach more than 50 vehicles, and the daily transit volume of fruits and vegetables can reach more than 1,000 tons. (Xinhua/Ren Chao)

Staff transfer vegetables at the preservation warehouse of Pinggu Mafang transfer storage and transportation station for fruits and vegetables entering Beijing in Pinggu District, Beijing, capital of China, June 25, 2020. The transfer storage and transportation station, which includes disinfection area, turnover area, temporary storage area and closed-off management area, was put into use recently. The carrying capacity of trucks here can reach more than 50 vehicles, and the daily transit volume of fruits and vegetables can reach more than 1,000 tons. (Xinhua/Ren Chao)

Staff register the information of a truck driver and his vehicle at the entrance of the Pinggu Mafang transfer storage and transportation station for fruits and vegetables entering Beijing in Pinggu District, Beijing, capital of China, June 25, 2020. The transfer storage and transportation station, which includes disinfection area, turnover area, temporary storage area and closed-off management area, was put into use recently. The carrying capacity of trucks here can reach more than 50 vehicles, and the daily transit volume of fruits and vegetables can reach more than 1,000 tons. (Xinhua/Ren Chao)

A truck is disinfected at the Pinggu Mafang transfer storage and transportation station for fruits and vegetables entering Beijing in Pinggu District, Beijing, capital of China, June 25, 2020. The transfer storage and transportation station, which includes disinfection area, turnover area, temporary storage area and closed-off management area, was put into use recently. The carrying capacity of trucks here can reach more than 50 vehicles, and the daily transit volume of fruits and vegetables can reach more than 1,000 tons. (Xinhua/Ren Chao)

Staff register the information of a truck driver and his vehicle at the entrance of the Pinggu Mafang transfer storage and transportation station for fruits and vegetables entering Beijing in Pinggu District, Beijing, capital of China, June 25, 2020. The transfer storage and transportation station, which includes disinfection area, turnover area, temporary storage area and closed-off management area, was put into use recently. The carrying capacity of trucks here can reach more than 50 vehicles, and the daily transit volume of fruits and vegetables can reach more than 1,000 tons. (Xinhua/Ren Chao)

A medical worker collects a throat swab from a truck driver at the Pinggu Mafang transfer storage and transportation station for fruits and vegetables entering Beijing in Pinggu District, Beijing, capital of China, June 25, 2020. The transfer storage and transportation station, which includes disinfection area, turnover area, temporary storage area and closed-off management area, was put into use recently. The carrying capacity of trucks here can reach more than 50 vehicles, and the daily transit volume of fruits and vegetables can reach more than 1,000 tons. (Xinhua/Ren Chao)

Photo taken on June 25, 2020 shows a nucleic acid testing site at the Pinggu Mafang transfer storage and transportation station for fruits and vegetables entering Beijing in Pinggu District, Beijing, capital of China. The transfer storage and transportation station, which includes disinfection area, turnover area, temporary storage area and closed-off management area, was put into use recently. The carrying capacity of trucks here can reach more than 50 vehicles, and the daily transit volume of fruits and vegetables can reach more than 1,000 tons. (Xinhua/Ren Chao)

A staff member registers the information of a truck driver and his vehicle at the entrance of the Pinggu Mafang transfer storage and transportation station for fruits and vegetables entering Beijing in Pinggu District, Beijing, capital of China, June 25, 2020. The transfer storage and transportation station, which includes disinfection area, turnover area, temporary storage area and closed-off management area, was put into use recently. The carrying capacity of trucks here can reach more than 50 vehicles, and the daily transit volume of fruits and vegetables can reach more than 1,000 tons. (Xinhua/Ren Chao)

A staff member transfers vegetables at the preservation warehouse of Pinggu Mafang transfer storage and transportation station for fruits and vegetables entering Beijing in Pinggu District, Beijing, capital of China, June 25, 2020. The transfer storage and transportation station, which includes disinfection area, turnover area, temporary storage area and closed-off management area, was put into use recently. The carrying capacity of trucks here can reach more than 50 vehicles, and the daily transit volume of fruits and vegetables can reach more than 1,000 tons. (Xinhua/Ren Chao)

A dirver drives out of the disinfection area at the Pinggu Mafang transfer storage and transportation station for fruits and vegetables entering Beijing in Pinggu District, Beijing, capital of China, June 25, 2020. The transfer storage and transportation station, which includes disinfection area, turnover area, temporary storage area and closed-off management area, was put into use recently. The carrying capacity of trucks here can reach more than 50 vehicles, and the daily transit volume of fruits and vegetables can reach more than 1,000 tons. (Xinhua/Ren Chao)

A staff member disinfects the parking area of the Pinggu Mafang transfer storage and transportation station for fruits and vegetables entering Beijing in Pinggu District, Beijing, capital of China, June 25, 2020. The transfer storage and transportation station, which includes disinfection area, turnover area, temporary storage area and closed-off management area, was put into use recently. The carrying capacity of trucks here can reach more than 50 vehicles, and the daily transit volume of fruits and vegetables can reach more than 1,000 tons. (Xinhua/Ren Chao)

Staff transfer vegetables at the preservation warehouse of Pinggu Mafang transfer storage and transportation station for fruits and vegetables entering Beijing in Pinggu District, Beijing, capital of China, June 25, 2020. The transfer storage and transportation station, which includes disinfection area, turnover area, temporary storage area and closed-off management area, was put into use recently. The carrying capacity of trucks here can reach more than 50 vehicles, and the daily transit volume of fruits and vegetables can reach more than 1,000 tons. (Xinhua/Ren Chao)

A staff member transfers vegetables at the preservation warehouse of Pinggu Mafang transfer storage and transportation station for fruits and vegetables entering Beijing in Pinggu District, Beijing, capital of China, June 25, 2020. The transfer storage and transportation station, which includes disinfection area, turnover area, temporary storage area and closed-off management area, was put into use recently. The carrying capacity of trucks here can reach more than 50 vehicles, and the daily transit volume of fruits and vegetables can reach more than 1,000 tons. (Xinhua/Ren Chao)