The Type 054A guided-missile frigate Bayannur (Hull 551) attached to a naval flotilla under the Chinese PLA Southern Theater Command sails on the sea during a maritime training exercise on April 21, 2026. (eng.chinamil.com.cn/Photo by Wang Paiquan and Fang Zhikun)4月21日，南部战区海军某支队开展海上训练。图为舰艇航行。（英文中国军网/王湃权、方智坤 摄）