What he envisions is an ellipsoid with tiny wings that he says can take off vertically and move like an alien spaceship, albeit at subsonic speed.
What he envisions is an ellipsoid with tiny wings that he says can take off vertically and move like an alien spaceship, albeit at subsonic speed.
他所设想是极有椭翅膀起飞,他说像一个垂直和举措外国人飞船,不过亚音速速度.