求翻译：当光射向一个运动的物体，散射出来的光与入射光相比频率会发生变化，这个变化的大小与物体运动速度以及照射光与速度方向之间的夹角有关。是什么意思？

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When light shone a movement out of objects, scattering the light and incident light frequencies compared to change, and this change the size and speed as well as objects with the speed-exposure The angle between the direction.

When the photoemission to a movement object, scatters the light and the incident light compare the frequency to be able to change, this change size and the object velocity of movement as well as the illumination light and between the speed direction included angle concerns.

When shooting a moving object, compared to the scattering of light and incident light frequency changes, that change the size and speed of moving objects, and light irradiation angle between the direction and speed related.

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