condensation trail

英 美
  • 凝结尾迹
  • condensation n.浓缩;凝结;液滴
  • trail n.踪迹;小径;尾;一系列vi.拖;落后于vt.追踪;拖拽;尾随
Noun:
  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