... 能见度受限制；能见度不良 restricted visibility 能见距；视线范围 range of visibility 能量调节阀；容量调节阀 capacity adjusting valve ...
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能见距离 visibility ; [气象] [交] visibility distance ; visible distance ; range of visibility
气象能见距离 meteorological visibility range
地理能见距离 geographic range
灯光能见距离 visual range of light
物标能见距 range of object
物标地平能见距 horizontal distance of object
物标地理能见距 geographical range of an object
测者地平能见距离 horizontal distance of eye
灯光地理能见距离 geographic range of light
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