ballast fin

 
  • 鳍龙骨,压载龙骨

ballast fin的用法和样例:

例句

  1. Pig iron used as permanent ballast.
    压载铁做为永久性压舱物的生铁
  2. A feather, wing, fin, or similar appendage.
    羽、翼或鳍状结构羽、翼、鳍或类似的悬着物
  3. The ship was furnished with ballast.
    船上装了压舱物。
  4. The shark's fin sliced the water.
    鲨鱼的背鳍像刀样迅速划破水面。
  5. The ballast placed in the ship can keep the ship steady.
    放在船上的压舱物可以保持船的平稳。
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