計けい器き着ちゃく陸りく装そう置ちけいきちゃくりくそうちじ字FuriganaMeanings1nouninstrument landing system; ILSAviation term for a precision runway approach system using radio signals. Often abbreviated as ILS.パイロットは計けい器き着ちゃく陸りく装そう置ちを使つかって霧きりの中なかを着ちゃく陸りくし
