点击数：2443
来源：新华社 发布时间：2019年3月13日
摘要：An aircraft independently developed by a private Chinese firm completed a test flight that is open to the public. Find out the details.
来源：新华社 发布时间：2019年3月13日
摘要：An aircraft independently developed by a private Chinese firm completed a test flight that is open to the public. Find out the details.
