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buoyancy; floating power
浮力のおかげで重い船が水に浮かぶ。
Heavy ships float on water thanks to buoyancy.
物理の授業で浮力の原理を学んだ。
I learned the principle of buoyancy in physics class.
浮力を計算して潜水艦の設計を行う。
Submarines are designed by calculating buoyancy.