Domestic aircraft cargo holds typically carry 3-4 tons, and due to the large number of tickets and diverse types, the process from the deplaning apron to the warehouse, followed by manual sorting and notification to the boarding counters, is a normal occurrence. Additionally, airports in regions like Beijing, Shanghai, Guangzhou, Shenzhen, Jiangsu, and Zhejiang, which are economically active and busy, may experience delays of 1-3 hours or more due to various factors such as weather, aircraft traffic, and unloading personnel.