C919是中国首款按照国际通行适航标准自行研制、具有自主知识产权的喷气式中程干线客机，于2023年5月完成首次商业飞行。本月初，由南航C919国产大飞机执飞的航班落地南阳机场，完成国内支线机场商业首航。随着郑州加入C919航线网络，C919的服务范围 ...

BEIJING, July 3 (Xinhua) -- China successfully completed the maiden flight of a domestically developed ultra-lightweight miniature jet engine, which was entirely manufactured using 3D printing ...

An employee at the airport in Higashine, Yamagata Prefecture, first spotted the black bear, which was about 1.2 meters tall, near the runway at around 7 a.m. local time, forcing its closure for about ...