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。
The antenna is capable of acquiring the range and angular information of all obstacles in its field-of-view simultaneously without using a scanning or switching antenna.
这种天线能够同时获得其视野内所有障碍物的范围和角度信息，不需要使用扫描天线或转换天线。
应用推荐