On July 11, the Russian Navy's Corvette "Loud" left Shanghai. Photographed by Ren Wei in People's Liberation Army Daily, July 11, Shanghai -- Reporter Qian Xiaohu and correspondent Ni Zhiyuan reported that on the morning of July 11, the Russian Navy fleet successfully completed a 7-day friendly visit to Shanghai and left a military port in Wusong. In the waters near the mouth of the Yangtze River, the Chinese Navy Taiyuan and the Russian Navy "Loud" and "Perfect" formed a joint formation and held a joint maritime exercise. The first step is a communication drill. As a formation Command ship, Taiyuan Ship sent signals to the "Loud" and "Perfect" Corvette through Very high frequency, and then received and sent signals interchangeably between the two sides. The training of light communication, signal brief language, etc. was carried out continuously to test the understanding and application of communication rules by both parties. To command efficiently and coordinate, navigation is neat and uniform, smooth communication is very important, "an officer from the communication department of the Taiyuan ship told reporters. After the communication drill, the formation also conducted exercises such as formation movement and maritime search and rescue. The formation of Chinese and Russian warships cleaved the waves and worked closely together to achieve a complete success in the maritime joint exercise. Since the Russian Navy fleet visited Shanghai on July 5, Chinese and Russian naval officers and men have visited each other's warships, conducted professional and technical exchanges, and organized cultural and sports activities such as football friendly matches. This visit further deepened the friendship between the naval officers and soldiers of the two countries and enhanced mutual trust. (New News Agency)