HAIKOU, Dec. 21 (Xinhua) -- China's scientific research ship Tansuo-2 returned to port in the city of Sanya, south China's Hainan Province on Monday, after completing its ocean expedition.
The vessel carrying the 4,500-meter deep-sea manned submersible Shenhai Yongshi (Deep Sea Warrior) berthed and anchored Monday evening, according to the Institute of Deep-sea Science and Engineering of the Chinese Academy of Sciences.
As the second mother ship of China's new deep-sea manned submersible Fendouzhe (Striver), Tansuo-2 conducted several joint deep dives with Tansuo-1, another mother ship, in the Challenger Deep in the Mariana Trench, the world's deepest natural trench in the western Pacific.
Fendouzhe onboard Tansuo-1 set a national record by diving to a depth of 10,909 meters in the Mariana Trench on Nov. 10.
Editor: Liu Shuqiao