... angular eclipse 环蚀 angular field-of-view 角视场 angular filter function 角滤波函数 ...
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视场角 FOV ; angle of field of view ; [光] FIELD ANGLE ; angle of view
望远镜视场角 angle of view of telescope ; opening of the telescope
水平视场角 Horizontal field
瞬时视场角 IFOV ; instantaneous field of view
半视场角 semiangular field ; angle of half field-of view ; half-field angle
正常视场角物镜 normal-angel objective
视场角度 Field of view ; View Angle
计算视场角 angle of view
物方视场角 imaging angle
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。
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).
较宽的目镜视场搭配较低的放大率可以得到更宽的视场角。
An eyepiece with wide apparent field (in degrees) and lower powers used on a telescope allow wider fields of view.
垂直屏障也约束视场角，还不允许多重视角。
The vertical barrier also restricts viewing angles and doesn't allow for multiple perspectives.
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