因此飞机的精确定义就是：飞机是有动力驱动的有固定机翼的而且重于空气的航空器。
Therefore, a precise definition of the aircraft is: there is a power-driven aircraft, fixed wing aircraft and is heavier than air.
因此飞机的精确定义就是：飞机是有动力驱动的有固定机翼的而且重于空气的航空器。
Therefore, a precise definition of the aircraft is: there is a power-driven aircraft, fixed wing aircraft and is heavier than air.
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