unidentified aerial phenomenon

名詞

(aviation) Synonym of unidentified flying object (“UFO”)

日本語の意味

未確認空中現象

During the night flight, the crew observed an unidentified aerial phenomenon that did not match any known aircraft signatures.

夜間飛行中、乗務員は既知の航空機の特徴に一致しない未確認航空現象を観測した。

意味（1）

(aviation) Synonym of unidentified flying object (“UFO”)

An Introduction to the Public's Misperception of Unidentified Aerial Phenomena and Extraterrestrial Life.

unidentified aerial phenomena

（ plural ）