A female sailor aboard the guided-missile frigate Rizhao (Hull 598) uses tools to do chart works on a plotting sheet during a 3-day maritime live-fire training exercise in waters of the Yellow Sea from February 8 to 10, 2018. She is assigned to a destroyer flotilla with the PLA Navy under the Northern Theater Command. (eng.chinamil.com.cn/Photo by Zhang yan and Hu Yibo)
