As of August 1, 211, the Dongfanghong-2 comprehensive marine research ship has been launched for 15 years, and its scientific research voyage has reached more than 3, nautical miles (equivalent to 14 laps around the equator), with tracks all over the Bohai Sea, the Yellow Sea, the East China Sea, the South China Sea and the Northwest Pacific Ocean. It has undertaken comprehensive voyage missions of more than 1 national major research topics, such as the National Basic Research and Development Plan (973), the National High-tech Development Plan (863) and the National Natural Science Foundation, carrying more than 4, scientific researchers, and has conducted extensive cooperation with more than 3 related marine research units and institutes at home and abroad.