What does it mean that the Fujian ship is stationed at the Sanya military port?

Military expert Zhang Junshe: The berthing position of an aircraft carrier is never simply a "choice for docking". Compared to the East China Sea and the Yellow Sea, the South China Sea has a larger and more vast area, deeper waters, and more complex sea conditions, making it suitable for aircraft carriers to carry out actual combat training. Having two aircraft carriers, the Fujian Ship and the Shandong Ship, stationed in the same port makes it easier to form a dual aircraft carrier formation, which can carry out far-sea defense operations, seize far-sea air and sea control, as well as conduct land strikes and support island and reef attack operations.