The amount of sky that you can view through a telescope is called the real (true) field of view and is measured in degrees of arc (angular field).
通过望远镜你所能看到的天空的范围称作真实视场,以弧度值(角视场)来度量。
Detection of the decoys in the field of view (FOV) of the imaging-infrared seeker (IIR) is important for IIR to track the true target aircraft.
在红外成像导引头视场中,及时检测出干扰弹是红外成像导引头实现抗干扰弹干扰的前提。
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