The deep-sea submersible mother ship Tansuo-2 (Exploration No.2), fully equipped with China's own scientific equipment and loaded with deep-sea manned submersible "Fendouzhe", arrived in Yazhou Bay of Sanya City in south China's Hainan Province on Sunday. The Tansuo-2 mother ship set sail from Fuzhou Port in east China's Fujian Province on Thursday. The "Fendouzhe"(Striver) and the "Deep Sea Warrior" manned submersibles will soon be adapted to the ship to achieve joint operational capabilities.