Is the intersection of time and space close?

The intersection of time and space is not close. Space-time partners are still relatively common now. Space-time partners are not closely connected, but when they become space-time partners, they will also become yellow codes and accept nucleic acid detection.

Spatio-temporal companion refers to the person who stays with the diagnosed patient for 14 days in the same spatio-temporal grid, and usually takes 800 m× 800 m as the detection range. Generally speaking, the infected person has been to a place within 14 days, and the trajectory of you 14 days intersects with him. Whether it is physical transmission or drift of communication signals, it may be considered as a problem of time and space.

Time and space companions need to be isolated for a few days.

Spatio-temporal companions mainly refer to citizens who have stayed in the same spatio-temporal grid with the telephone numbers of confirmed cases or asymptomatic infected persons for more than 10 minutes within the range of 800 m× 800 m, and whose telephone numbers of either party have stayed in the spatio-temporal grid for more than 30 hours in the last 14 days.

Generally speaking, simple space-time companions do not need centralized isolation. They only need to carry out two nucleic acid tests within three days, and the interval between the two nucleic acid tests should be more than 24 hours. Please stay at home and don't go out until you get a nucleic acid negative result.