... sighting disk 观察盘 sighting distance 视距离 sighting error 瞄准误差,照准误差 ...
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...之一CD,把一个平方米的LED亮度加在一起,就得到单位面积亮度,用尼特(NITS)表示,1 NITS=1 CD/m2 视距离(Viewing Distance) 灰度等级(Grey Levels) ..
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可视距离 IR view distance ; Viewing Distance ; OR viwe distance
夜视距离 Night Vision Range ; Night vision distance ; [光] night visual range ; IR view distance
明视距离 [光] distance of distinct vision ; distance of most distinct vision ; visual distance ; reference viewing distance
最小明视距离 least distance of distinct vision ; least distance of ditnice vision
直视距离 optical range ; horizon grange ; direct-view distance ; line-of-sight distance
认视距离 bright viewing distance ; glare
最小可视距离 Minimum Viewing distance
跑道目视距离 RVR
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