不可返回点；无还点：一架飞机飞行中，飞机没有足够的油料返回出发点的那一点。
The point in the flight of an aircraft beyond which there is insufficient fuel for return to the starting point.
不可返回点；无还点：一架飞机飞行中，飞机没有足够的油料返回出发点的那一点。
The point in the flight of an aircraft beyond which there is insufficient fuel for return to the starting point.
应用推荐