角直径是以角度做测量单位时，从一个特定的位置上观察一个物体所得到的"视直径"。
角直径距离 Angular Diameter distance
回复反射装置的角直径 reflecting device ; Angular diameter of the retro-reflecting device
哦雅角直径 oh ya kok diam
口袋里的圆角直径 fillet diameter of pocket
哦亚角直径 oh ya kok diam
恒星角直径测量 stellar angular diameter measurement
角膜水平直径 horizontal corneal diameter ; White to white
测径直角尺 caliper square
角膜直径 corneal diameter
在这一观测周期中，我们没有发现角直径随时间变化的现象。
We have not found any changes of observed values of the angular diameter with time in this period.
许多人紧张地观看和拍摄着直径近100英尺、画满圆圈和三角形图案的麦田怪圈，而有些人则晕倒在地或者不住祷告，认为是上天降下的旨意。
Many strained to see or photograph the nearly 100-foot diameter pattern featuring circles and triangles.Some people fainted or prayed, considering it a sign from above.
许多人紧张地观看和拍摄着直径近100英尺、画满圆圈和三角形图案的麦田怪圈，而有些人则晕倒在地或者不住祷告，认为是上天降下的旨意。
Many strained to see or photograph the nearly 100-foot diameter pattern featuring circles and triangles. Some people fainted or prayed, considering it a sign from above.
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