China's second aircraft carrier returns to dock at Dalian Shipyard in northeast China's Liaoning Province, on May 18, 2018 after its first sea trials. The aircraft carrier, the country's first domestically-built one, was launched in April last year and began the sea trials on May 13. (Xinhua)

DALIAN, May 18 (Xinhua) -- China's second aircraft carrier returned to dock at Dalian Shipyard in northeast China's Liaoning Province, Friday noon after its first sea trials.

The aircraft carrier, the country's first domestically-built one, was launched in April last year and began the sea trials on May 13.