浮力 (fú lì): Buoyancy / buoyant force (Noun) — Meaning & Stroke Order

The buoyancy of water allows boats to float on the surface.

The buoyancy of the life jacket is sufficient to support an adult floating in water.

Why can a hot air balloon ascend? This is mainly due to the buoyant force of the air.

When swimming, the buoyancy of water makes us feel lighter.