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transition level transition altitude这两者都表示“过渡高度(层)”,但又有着严格的区分尺度。transition level表示将高度表由标准大气压(1013.2帕)调到机场海压的高度,适用于进场飞机。
transition level transition altitude Both of these represent “transitional height (layer)”, but with a strict distinction scale. The transition level means that the altimeters will be adjusted from the standard atmospheric pressure (1013.2 Pa) to the sea level of the airport for the approach aircraft.