In the deep ocean, China stands out

Submersible completes its tasks on Earth's final frontier

Editor's note: In the run-up to the 19th Communist Party of China National Congress, China Daily will cover a series of key projects and advanced equipment of national importance, showcasing the country's huge improvement and relentless efforts at innovation.

From extracting methane from the bottom of the sea to exploring trenches with submersibles, China is pushing forward technology and research on all fronts to unravel the mysteries of the deep.