China's domestically developed large twin-engine unmanned transport aircraft completed its maiden test flight on Sunday morning at Lantian Airport in Zigong City in the southwestern province of Sichuan.

中國(guó)自主研發(fā)的大型雙發(fā)無(wú)人運(yùn)輸機(jī)于周日早晨在四川省自貢市的藍(lán)天機(jī)場(chǎng)完成了首飛。