How to find out the intersection of time and space?

Time-space intersection means that my phone number and confirmation number are within 800M? * * * Stay in the same space-time grid at 800M for more than 10 minutes, and stay in any number for more than 30 hours in the last 14 days. If the number found is a space-time companion number, my health code will turn yellow and be marked as? Time and space companion? .

How should individuals do well in epidemic prevention?

When the staff check the overlapping tracks, do not go out, do personal protection and wait for the staff to come to the door for flow adjustment and nucleic acid sampling.

Ventilation, hand washing and disinfection should be done frequently at home. Do not walk outdoors for a long time, especially in areas with high epidemic risk.

Avoid places with closed space and poor ventilation when going out, and reduce the stay time in closed places. Be sure to wear a mask.