What does Lanzhou mean by sweeping pornography and checking epidemic prevention?

By inquiring relevant information, it shows that Lanzhou epidemic prevention has been scanned three times, namely, scanning Xiaolan to help, checking body temperature, checking health code green code, and checking negative proof of nucleic acid test. In the workplace, you must abide by the epidemic prevention measures and regulations of your unit. When you enter the office, you should cooperate with the "scanning". Don't go to work sick, and report to the unit in time if you feel unwell. Strictly implement the measures of "one sweep and three checks", that is, "sweep Xiaolanbang, check the body temperature, check the green code of health code and check the negative certificate of nucleic acid detection", so that "every time you sweep one item, you must check one item and not miss one person".