- 目視進(jìn)場(chǎng)下滑道指示器
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visual approach slope indicator中文什么意思
百科釋義
The visual approach slope indicator (VASI) is a system of lights on the side of an airport runway threshold that provides visual descent guidance information during approach. These lights may be visible from up to during the day and up to or more at night.
詳細(xì)百科解釋