contrail

名词 contrail:

1. 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
   同义词：condensation trail

con.trail

n.（名词）
A visible trail of streaks of condensed water vapor or ice crystals sometimes forming in the wake of an aircraft.Also called vapor trail
凝结尾流：一种由凝结的水蒸汽或冰晶组成的条带状可见迹线，有时形成飞机的尾迹也作 vapor trail

来源：
con(densation)
con(densation)
trail
trail