On 30th June, Jiaolong Manned Deep-sea Submersible came back from its 51st diving test with a new record of 7062m, which brought the big excitement to all sea-trail members. It’s the third time “Jiaolong” had broke through the depth mark of 7000m in this sea-trail, and the deepest diving depth of 7062m also created a record for the similar submersibles in the world.