1·However if a permanent magnet is put near the bottom of cup it will produce a heterogeneous magnetic field and act on the aluminum ball to produce a magnetic buoyant force.
但当下方永久磁铁靠近杯底时，在磁液中产生非均匀磁场，对铝球作用一磁性浮力。
2·The buoyant force up equals the weight down.
向上的浮力等于向下的重量。
3·Air heated by the arc moves upward because it is less dense than the cooler air around it, and it moves at a speed for which the buoyant force and the drag force are equal.
空气加热，电弧向上的动作，因为它是密度较低，较凉的空气靠近它，它的速度移动，其中有浮力和阻力都是平等的。
4·Buoyant force is equal to the weight of liquid displaced. It acts vertically upward.
浮力等于排开液体的体积， 方向垂直向上。
5·Buoyant force is not only the base of hydrostatics which has many applications, but also the key point of physics teaching in the middle school.
“浮力”是流体静力学中应用性较强的基础知识之一，也是初中物理教学的重要内容。