transition level

名词 n.
中文释义

英文释义

名词 n.
  1. The lowest flight level above the transition altitude; depends on the transition altitude and the measured or calculated sea-level atmospheric pressure. The flight level at which a descending aircraft's barometric altimeters are reset from a constant setting of 1013.25 hectopascals to the setting corresponding to the actual measured or calculated atmospheric pressure at mean sea level. uncountable,usually

词形变化

transition levels plural
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