The upward buoyant force on an object partially or wholly submerged in a fluid is equal to the weight of the displaced fluid.
部分浸没或全部浸没在流体中的物体所受到的向上浮力,等于它所排开流体的重量。
The buoyant force up equals the weight down.
向上的浮力等于向下的重量。
The aluminum will float up when the magnetic buoyant force is large enough.
当磁性浮力足够大时,就能将铝球浮起来。
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