an artificial cloud created by an aircraft; caused either by condensation due to the reduction in air pressure above the wing surface or by water vapor in the engine exhaust
condensation trail 例句
英汉例句
The Pentagon has said an aircraft, not a missile, was the probable cause of a condensation trail off the coast of California on Monday.
五角大楼报道:星期一,可能是一个飞行器――不是导弹――在加利福尼亚近海岸引起了一道凝结尾迹。
A long condensation trail was filmed by a news helicopter arcing into the evening sky west of Los Angeles.