fin keel

英 美
  • 鳍龙骨
  • fin n.鳍;鱼翅;鳍状物;散热片;五元纸币
  • keel n.(船的)龙骨v.(船)倾覆;突然倒下;出问题
Noun:
  1. a metal plate projecting from the keel of a shallow vessel to give it greater lateral stability