China's new domestically built marine geological survey vessel Haiyang Dizhi-10 (Ocean Geology 10) is seen in Dongguan, south China's Guangdong Province, June 26, 2017. The new marine geological survey vessel was unveiled in Dongguan on Wednesday. It enters the water after the launches of Haiyang Dizhi-8 and Haiyang Dizhi-9 in February. Haiyang Dizhi-10 is 75.8 meters long and 15.4 meters wide with a displacement of 3,400 tonnes. The vessel has a range of 8,000 nautical miles. (Xinhua/Huang Guobao)