Chinese autonomous aerial vehicles maker EHang Holdings is ready for big takeoff Chinese manufacturer of autonomous aerial vehicles (AVV), EHang Holdings (亿航智能), is stepping up efforts to bolster the commercial operation of electric vertical takeoff and landing aircraft. 3.3w 12-16 18:00 READ MOST 我国授权纳米专利总数达46.4万件 居世界第一 8775 08-30 21:46 POPULAR TAGS 纳米 中科院 专利
