然而，通过自由落体测试，研究者可以量化的测量翅果的飞行动力并且用得到的信息数据来控制翅果的自旋和飞行轨迹。

However, through free-fall testing, the researchers could quantitatively measure the samara's flight dynamics and use this information to control the samara's autorotation and flight path.

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大气数据测量系统是飞行器的重要组成部分，为飞行控制系统提供高度和速度等重要的信息源。

The atmosphere data measure system plays a very important role in an aircraft system and it provides the height and velocity information and so forth for the flight control system.

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