funnelling

英['fʌnnelɪŋ] 美['fʌnnelɪŋ]
  • 漏斗的形成,狭管效应
名词 funnel:
  1. a conical shape with a wider and a narrower opening at the two ends

  2. a conically shaped utensil having a narrow tube at the small end; used to channel the flow of substances into a container with a small mouth

  3. (nautical) smokestack consisting of a shaft for ventilation or the passage of smoke (especially the smokestack of a ship)