reserve buoyancy

例句：

1. 1. The ship's engineer must carefully monitor the reserve buoyancy to ensure stability during high winds.
   船的工程师必须仔细监测储备浮力，以确保在大风中保持稳定。
2. 2. The aircraft had a reserve buoyancy of 50,000 pounds, which is enough to carry its ownweight and fuel for several hours.
   这架飞机有50,000磅的储备浮力，足以承载飞机本身和燃料的重量，持续几个小时。
3. 3.The diver used his reserve buoyancy to help the injured man back to the surface.
   潜水员利用他的储备浮力帮助受伤的人回到水面上。