Chinese President Xi Jinping, also general secretary of the Communist Party of China Central Committee and chairman of the Central Military Commission, talks with academician of Chinese Academy of Engineering Guan Huashi at Pilot National Laboratory for Marine Science and Technology during an inspection tour in Qingdao, east China's Shandong Province, June 12, 2018. (Xinhua/Li Xueren)

Chinese President Xi Jinping, also general secretary of the Communist Party of China Central Committee and chairman of the Central Military Commission, looks at a product at an industrial park of Wanhua Chemical during an inspection tour in Yantai, east China's Shandong Province, June 13, 2018. (Xinhua/Li Xueren)

Chinese President Xi Jinping, also general secretary of the Communist Party of China Central Committee and chairman of the Central Military Commission, visits a fort relic site on Liugong Island during an inspection tour in Weihai, east China's Shandong Province, June 12, 2018. (Xinhua/Xie Huanchi)

Chinese President Xi Jinping, also general secretary of the Communist Party of China Central Committee and chairman of the Central Military Commission, visits a fort relic site on Liugong Island during an inspection tour in Weihai, east China's Shandong Province, June 12, 2018. (Xinhua/Li Xueren)