真しん空くう帯たいじ字FuriganaMeanings1nounair pocketTechnical term used in aviation and meteorology for a sudden downdraft or region of low air density that causes an aircraft to drop. Not a vacuum in the strict physical sense.飛ひ行こう機きが真しん空くう帯たいに入はいって、急きゅうに高こう度どが下さがった。The plane hit an air pocket and suddenly lost altitude.
