并利用电扇作为目标，测试了目标距离及不同档风速下的目标视线速度。

The range of an electric fan as well as the line-of-sight fan speed of different levels is tested.

youdao

并利用电扇作为目标，测试了目标距离及不同档风速下的目标视线速度。

The range of an electric fan as well as the line-of-sight fan speed of different levels is tested.

youdao