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photoelectric transmissometer
释义
photoelectric transmissometer
photoelectric transmissometer
[
¦fōd·ō·i′lek·trik ‚tranz·mə′säm·əd·ər
]
(engineering)
A device to measure the runway visibility at an airport by measuring the degree to which a light beam falling on a photocell is obscured by clouds or fog.
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更新时间:2026/6/16 9:19:40