FIFA, 16 May (FAP)-- yesterday (15), China's first manned submersible, fully equipped with domestic scientific research equipment, supported the mother ship, the "Exploration 2", to arrive at the Tieshuiping wharf in Fuzhou, Fujian Province, for the first intermediate inspection, including underwater hull inspection, power plant overhaul, and so on. "Discovery II" has participated in the implementation of the cold spring section of the South China Sea, deep-sea archaeological voyages and other major scientific research projects.