locator outer marker
(aviation, chiefly US) A ground-based radio navigation aid consisting of a pair of colocated radio beacons at the final approach fix of an ILS or IGS approach course: an NDB to guide aircraft to the approach fix, and an outer marker to alert aircraft as they pass over the station.
(philosophy, rare) The quality of being a causal result.
plural of elaiosome
(dated) Caused by or related to disease, pathology.
ILS進入中、乗務員は最終進入点を確認するため、NDB(無指向性無線標識)と外側標識が併設された地上無線航法施設に受信周波数を合わせた。
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