This aerial photo shows a freight train bound for Ulan Bator, Mongolia, pulling out of a station in 

Tianjin Port in north China's Tianjin, Sept. 18, 2023. Since the beginning of this year, north China's 

Tianjin Port has seen nearly 500 China-Europe and China-Central Asia freight train trips. The freight

 train service is of great significance to further promote the coordinated development of the

 international logistics in the Beijing-Tianjin-Hebei region. [Photo/Xinhua]

A container is lifted at a station in Tianjin Port in north China's Tianjin, Sept. 18, 2023. [Photo/Xinhua]

Vehicles transport containers in Tianjin Port in north China's Tianjin, Sept. 18, 2023. [Photo/Xinhua]

A freight train bound for Ulan Bator, Mongolia, is about to depart from a station in Tianjin Port in north China's Tianjin, Sept. 18, 2023. [Photo/Xinhua]

A container is lifted at a station in Tianjin Port in north China's Tianjin, Sept. 18, 2023. [Photo/Xinhua]

This aerial photo taken on Sept. 18, 2023 shows a cargo ship docked at Tianjin Port in north China's Tianjin. [Photo/Xinhua]