air pocket
(inorganic chemistry) Having a single thallium anion per compound or unit cell
a local region of low atmospheric pressure, or a local downward current; especially one that causes an aircraft to lose height suddenly
gum ammoniac, a resin exuded from the stem of the perennial herb Dorema ammoniacum.
Quality of being overanxious. / An unpleasant state of mental uneasiness, nervousness, apprehension or concern about uncertain events.
旅客機は気圧の低い局所的な空気の塊を通過したときに突然落下し、乗客は息をのんだ。
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