When checking again, you should show your boarding pass to the staff first, and passengers should take the metal detection door. You can rest in the corresponding terminal according to the boarding slogan displayed on the boarding pass and listen to the broadcast prompts to board the plane.
Extended data:
If the normal queuing time is tight, please ask the staff and the duty manager for help in time. Before the flight takes off, airline staff should make a lot of information, such as passenger information records, flight route information, aircraft weight balance table, aircraft fuel table and so on, and provide them to the crew. These tasks need to be completed in sufficient time.
The airline will stop checking in some time before take-off. The specific time varies with airport facilities and environment. You can check in by yourself through the airline website, self-service check-in equipment (CUSS) or other means.
However, the self-service check-in program cannot handle baggage consignment. At the airport, the airline will set up a baggage check-in counter. You can check your baggage at the counter with your printed boarding pass.
Civil Aviation Administration of China official website-flights.