The radar cross section (RCS) of a target is dependent on frequency as well as observation angle.
目标的雷达散射截面（RCS）与照射频率和照射角有关。
The consciousness has offered the new observation Angle for studying the social state of Ming-Qing Dynasties.
这种救荒意识为研究明清社会状况提供了新的观察角度。
The utility model can automatically adjust the observation Angle of the automobile rearview mirror in the reversing process, thereby bringing great convenience to the driver.
本实用新型可在倒车过程中自动调整汽车后视镜的观察角度，给驾驶员带来很大方便。
The utility model can automatically adjust the observation Angle of the automobile rearview mirror in the reversing process, thereby bringing great convenience to the driver.
本实用新型可在倒车过程中自动调整汽车后视镜的观察角度，给驾驶员带来很大方便。
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