Chinese research vessel Tansuo-1 set sail from South China's Hainan province, carrying manned submersible Deep Sea Warrior for the first deep-sea scientific research mission this year. With 60 scientific researchers on board, the 20-day trip will complete the parameter measurement and sample collection of marine life, marine geology and physical oceanography in the South China Sea. It also bears special meaning for Nanshan Port, marking its upgrade from a mere freight terminal to a multi-functional terminal for freight, scientific research and maintenance.