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Buoyancy - Wikipedia, the free encyclopedia
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日期：2026-04-27
In science, buoyancy /ˈbɔɪ.ənsi/ is an upward force exerted by a fluid that opposes the weight of an immersed object. In a column of fluid, pressure increases with depth as a result of the weight of the overlying fluid. Thus a column of fluid, or an objec...看更多
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