Measure the risk of airborne COVID-19 in your office, classroom, or bus ride

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類型: 連結
作者: MAYA WEI-HAAS AND KENNEDY ELLIOTT
出處: National Geographic
連結: https://www.nationalgeographic.com/science/2020/08/how-to-measure-risk-airborne-coronavirus-your-office-classroom-bus-ride-cvd/