Chinese research ship Haiyang Dizhi-9, or Ocean Geology No 9, returned to port in Qingdao, East China's Shandong province, on Friday.
The vessel made the return after having completed a 258-day voyage.
Covering more than 25,000 nautical miles, the ship carried out geological studies in the South China Sea, gathered seismic data in the East China Sea and launched a comprehensive research project in the West Pacific Ocean, said the ship's chief scientist, Lu Kai.
"The vessel also served as a shared platform for allowing different research teams to carry out scientific research together," said Lu.
Haiyang Dizhi-9 is 87.07 meters in length, can cruise for up to 10,000 nautical miles and can reach a maximum speed over 15 knots per hour.
It is the only Chinese ship to carry out seismic, geological and geophysical study simultaneously.
Source:cctvplus
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