Warship open day event held in Qingdao

$Visitors view the guided-missile destroyer Guiyang of the Chinese People\'s Liberation Army (PLA) Navy during a warship open day event in Qingdao, east China\'s Shandong Province, April 24, 2019. A warship open day event was held on Wednesday in Qingdao, as part the multinational naval events marking the 70th founding anniversary of PLA Navy. (Xinhua/Guo Xulei)$

Visitors view the guided-missile destroyer Guiyang of the Chinese People's Liberation Army (PLA) Navy during a warship open day event in Qingdao, east China's Shandong Province, April 24, 2019. A warship open day event was held on Wednesday in Qingdao, as part the multinational naval events marking the 70th founding anniversary of PLA Navy. (Xinhua/Guo Xulei)

$Crew members and visitors take a selfie on Russian Navy tug ship Nikolai Chiker during a warship open day event in Qingdao, east China\'s Shandong Province, April 24, 2019. A warship open day event was held on Wednesday in Qingdao, as part the multinational naval events marking the 70th founding anniversary of PLA Navy. (Xinhua/Yu Lan)$

Crew members and visitors take a selfie on Russian Navy tug ship Nikolai Chiker during a warship open day event in Qingdao, east China's Shandong Province, April 24, 2019. A warship open day event was held on Wednesday in Qingdao, as part the multinational naval events marking the 70th founding anniversary of PLA Navy. (Xinhua/Yu Lan)

$Visitors are seen on Royal Thai Navy frigate HTMS Bangpakong during a warship open day event in Qingdao, east China\'s Shandong Province, April 24, 2019. A warship open day event was held on Wednesday in Qingdao, as part the multinational naval events marking the 70th founding anniversary of PLA Navy. (Xinhua/Guo Xulei)$

Visitors are seen on Royal Thai Navy frigate HTMS Bangpakong during a warship open day event in Qingdao, east China's Shandong Province, April 24, 2019. A warship open day event was held on Wednesday in Qingdao, as part the multinational naval events marking the 70th founding anniversary of PLA Navy. (Xinhua/Guo Xulei)

$A Thai frogman jumps into water during a warship open day event in Qingdao, east China\'s Shandong Province, April 24, 2019. A warship open day event was held on Wednesday in Qingdao, as part the multinational naval events marking the 70th founding anniversary of PLA Navy. (Xinhua/Wang Yuguo)$

A Thai frogman jumps into water during a warship open day event in Qingdao, east China's Shandong Province, April 24, 2019. A warship open day event was held on Wednesday in Qingdao, as part the multinational naval events marking the 70th founding anniversary of PLA Navy. (Xinhua/Wang Yuguo)

$Visitors stand on guided-missile destroyer Guiyang of the Chinese People\'s Liberation Army (PLA) Navy during a warship open day event in Qingdao, east China\'s Shandong Province, April 24, 2019. A warship open day event was held on Wednesday in Qingdao, as part the multinational naval events marking the 70th founding anniversary of PLA Navy. (Xinhua/Wang Yuguo)$

Visitors stand on guided-missile destroyer Guiyang of the Chinese People's Liberation Army (PLA) Navy during a warship open day event in Qingdao, east China's Shandong Province, April 24, 2019. A warship open day event was held on Wednesday in Qingdao, as part the multinational naval events marking the 70th founding anniversary of PLA Navy. (Xinhua/Wang Yuguo)

$Visitors purchase souvenirs on Royal Thai Navy frigate HTMS Bangpakong during a warship open day event in Qingdao, east China\'s Shandong Province, April 24, 2019. A warship open day event was held on Wednesday in Qingdao, as part the multinational naval events marking the 70th founding anniversary of PLA Navy. (Xinhua/Wang Yuguo)$

Visitors purchase souvenirs on Royal Thai Navy frigate HTMS Bangpakong during a warship open day event in Qingdao, east China's Shandong Province, April 24, 2019. A warship open day event was held on Wednesday in Qingdao, as part the multinational naval events marking the 70th founding anniversary of PLA Navy. (Xinhua/Wang Yuguo)

$Visitors view Royal Thai Navy frigate HTMS Bangpakong during a warship open day event in Qingdao, east China\'s Shandong Province, April 24, 2019. A warship open day event was held on Wednesday in Qingdao, as part the multinational naval events marking the 70th founding anniversary of PLA Navy. (Xinhua/Guo Xulei)$

Visitors view Royal Thai Navy frigate HTMS Bangpakong during a warship open day event in Qingdao, east China's Shandong Province, April 24, 2019. A warship open day event was held on Wednesday in Qingdao, as part the multinational naval events marking the 70th founding anniversary of PLA Navy. (Xinhua/Guo Xulei)

$Visitors pose for a photo in front of hospital ship Peace Ark of the Chinese People\'s Liberation Army (PLA) Navy during a warship open day event in Qingdao, east China\'s Shandong Province, April 24, 2019. A warship open day event was held on Wednesday in Qingdao, as part the multinational naval events marking the 70th founding anniversary of PLA Navy. (Xinhua/Ma Jing)$

Visitors pose for a photo in front of hospital ship Peace Ark of the Chinese People's Liberation Army (PLA) Navy during a warship open day event in Qingdao, east China's Shandong Province, April 24, 2019. A warship open day event was held on Wednesday in Qingdao, as part the multinational naval events marking the 70th founding anniversary of PLA Navy. (Xinhua/Ma Jing)

$Visitors take photos during a warship open day event in Qingdao, east China\'s Shandong Province, April 24, 2019. A warship open day event was held on Wednesday in Qingdao, as part the multinational naval events marking the 70th founding anniversary of PLA Navy. (Xinhua/Luo Xiaoguang)$

Visitors take photos during a warship open day event in Qingdao, east China's Shandong Province, April 24, 2019. A warship open day event was held on Wednesday in Qingdao, as part the multinational naval events marking the 70th founding anniversary of PLA Navy. (Xinhua/Luo Xiaoguang)

$Visitors are seen during a warship open day event in Qingdao, east China\'s Shandong Province, April 24, 2019. A warship open day event was held on Wednesday in Qingdao, as part the multinational naval events marking the 70th founding anniversary of PLA Navy. (Xinhua/Ma Jing)$

Visitors are seen during a warship open day event in Qingdao, east China's Shandong Province, April 24, 2019. A warship open day event was held on Wednesday in Qingdao, as part the multinational naval events marking the 70th founding anniversary of PLA Navy. (Xinhua/Ma Jing)

$A crew member introduces torpedo installations to visitors on the guided-missile destroyer Guiyang of the Chinese People\'s Liberation Army (PLA) Navy during a warship open day event in Qingdao, east China\'s Shandong Province, April 24, 2019. A warship open day event was held on Wednesday in Qingdao, as part the multinational naval events marking the 70th founding anniversary of PLA Navy. (Xinhua/Yu Lan)$

A crew member introduces torpedo installations to visitors on the guided-missile destroyer Guiyang of the Chinese People's Liberation Army (PLA) Navy during a warship open day event in Qingdao, east China's Shandong Province, April 24, 2019. A warship open day event was held on Wednesday in Qingdao, as part the multinational naval events marking the 70th founding anniversary of PLA Navy. (Xinhua/Yu Lan)

$Visitors prepare to board guided-missile destroyer Guiyang of the Chinese People\'s Liberation Army (PLA) Navy during a warship open day event in Qingdao, east China\'s Shandong Province, April 24, 2019. A warship open day event was held on Wednesday in Qingdao, as part the multinational naval events marking the 70th founding anniversary of PLA Navy. (Xinhua/Ma Jing)$

Visitors prepare to board guided-missile destroyer Guiyang of the Chinese People's Liberation Army (PLA) Navy during a warship open day event in Qingdao, east China's Shandong Province, April 24, 2019. A warship open day event was held on Wednesday in Qingdao, as part the multinational naval events marking the 70th founding anniversary of PLA Navy. (Xinhua/Ma Jing)

$Visitors view hospital ship Peace Ark of the Chinese People\'s Liberation Army (PLA) Navy during a warship open day event in Qingdao, east China\'s Shandong Province, April 24, 2019. A warship open day event was held on Wednesday in Qingdao, as part the multinational naval events marking the 70th founding anniversary of PLA Navy. (Xinhua/Guo Xulei)$

Visitors view hospital ship Peace Ark of the Chinese People's Liberation Army (PLA) Navy during a warship open day event in Qingdao, east China's Shandong Province, April 24, 2019. A warship open day event was held on Wednesday in Qingdao, as part the multinational naval events marking the 70th founding anniversary of PLA Navy. (Xinhua/Guo Xulei)

$Visitors take photos of the guided-missile destroyer Guiyang of the Chinese People\'s Liberation Army (PLA) Navy during a warship open day event in Qingdao, east China\'s Shandong Province, April 24, 2019. A warship open day event was held on Wednesday in Qingdao, as part the multinational naval events marking the 70th founding anniversary of PLA Navy. (Xinhua/Wang Siwei)$

Visitors take photos of the guided-missile destroyer Guiyang of the Chinese People's Liberation Army (PLA) Navy during a warship open day event in Qingdao, east China's Shandong Province, April 24, 2019. A warship open day event was held on Wednesday in Qingdao, as part the multinational naval events marking the 70th founding anniversary of PLA Navy. (Xinhua/Wang Siwei)

$Visitors view the landing vessel Jinggangshan of the Chinese People\'s Liberation Army (PLA) Navy during a warship open day event in Qingdao, east China\'s Shandong Province, April 24, 2019. A warship open day event was held on Wednesday in Qingdao, as part the multinational naval events marking the 70th founding anniversary of PLA Navy. (Xinhua/Guo Xulei)$

Visitors view the landing vessel Jinggangshan of the Chinese People's Liberation Army (PLA) Navy during a warship open day event in Qingdao, east China's Shandong Province, April 24, 2019. A warship open day event was held on Wednesday in Qingdao, as part the multinational naval events marking the 70th founding anniversary of PLA Navy. (Xinhua/Guo Xulei)

$An interpreter introduces the guided-missile destroyer Guiyang of the Chinese People\'s Liberation Army (PLA) Navy to visitors during a warship open day event in Qingdao, east China\'s Shandong Province, April 24, 2019. A warship open day event was held on Wednesday in Qingdao, as part the multinational naval events marking the 70th founding anniversary of PLA Navy. (Xinhua/Luo Xiaoguang)$

An interpreter introduces the guided-missile destroyer Guiyang of the Chinese People's Liberation Army (PLA) Navy to visitors during a warship open day event in Qingdao, east China's Shandong Province, April 24, 2019. A warship open day event was held on Wednesday in Qingdao, as part the multinational naval events marking the 70th founding anniversary of PLA Navy. (Xinhua/Luo Xiaoguang)

$Visitors prepare to board on the guided-missile destroyer Guiyang of the Chinese People\'s Liberation Army (PLA) Navy during a warship open day event in Qingdao, east China\'s Shandong Province, April 24, 2019. A warship open day event was held on Wednesday in Qingdao, as part the multinational naval events marking the 70th founding anniversary of PLA Navy. (Xinhua/Luo Xiaoguang)$

Visitors prepare to board on the guided-missile destroyer Guiyang of the Chinese People's Liberation Army (PLA) Navy during a warship open day event in Qingdao, east China's Shandong Province, April 24, 2019. A warship open day event was held on Wednesday in Qingdao, as part the multinational naval events marking the 70th founding anniversary of PLA Navy. (Xinhua/Luo Xiaoguang)