1. aircraft supported by its own buoyancy. 
   由自身浮力支持的航空器。
2. To move with lightness and buoyancy. 
   轻快活泼地移动
3. The state or quality of being light; buoyancy. 
   轻重量轻的状态或性质；浮力
4. A nonrigid, buoyant airship. Modern blimps use helium instead of hydrogen to maintain buoyancy. 
   软式小飞艇软式浮飞艇。现代软式小飞艇，利用氦取代氢来保持浮力
5. an air-filled sac near the spinal column in many fishes that helps maintain buoyancy. 
   许多鱼类脊柱旁边保持浮力的充满空气的囊。

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• 1. 浮力矩
  浮力湿度计 buoyancy moment...浮力矩 buoyancy of water...水的浮力 buoyancy parameter
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