contrail
plural of burp
An artificial cloud made by the exhaust of jet aircraft or wingtip vortices that precipitate a stream of tiny ice crystals in moist, frigid upper air.
(chemistry) phosphorus
plural of saltier
その飛行機雲は澄んだ青空に一直線に伸び、ジェット機が地平線の彼方へ消えるとともにゆっくりと消えていった。
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