China's first manned deep-sea research submersible Jiaolong conducts an equipment test mission in Chinese territorial waters following a technical upgrade this year. [Photo provided to China Daily ...

China's manned deep-sea submersible Jiaolong has set a new record for dive frequency in its first hardware-testing mission after a major technical upgrade, according to the Ministry of Natural ...

The crewed submersible vessel Jiaolong, capable of diving to more than 7,000 metres (23,000 feet), recently finished a month-long trial following some major upgrades and showed improvements in ...