In turn, a buoyant force equal to the weight of the displaced water pushes up, counteracting you and your board's weight.

这会产生一股向上推的浮力，其力量大小等同于被排开水的重量，可以抵消你和冲浪板的重量。

Due to the high salinity, the water is so dense that our body experiences a powerful buoyant force in the hypersaline water.

由于盐度高，水非常稠密，以至于我们的身体在高盐度水中感受到强大的浮力。

And that is called the buoyant force.

这就是所谓的浮力。

Billy, now  that we have derived the equation for the buoyant force, please summarize what the buoyant force is.

比利， 现在我们已经导出了浮力的方程，请总结一下浮力是什么。

Finally, we explained Archimedes' Principle and the buoyant force.

最后，我们谈到了法律 阿基米德和浮力。

That's because the upward buoyant force is always stronger than the downward force of gravity.

那是因为向上的浮力总是强于向下的重力。

The buoyant force is an upward force acting on an object in a fluid.

浮力是作用在流体中的物体上的向上的力。

Their presence lowers the magma's density, and increases the buoyant force pushing upward through the crust.

它们的存在降低了岩浆的密度，并增加了向上推动地壳的浮力。

The liquid in turn exerts an upward buoyant force equal to the weight of the fluid that's been displaced.

液体反过来施加向上的浮力，等于被置换的流体的重量。

Mr.p keeps  saying buoyant force, however, he hasn't yet said the word buoyancy.

Mr.p一直在说浮力，但是他还没有说出浮力这个词。

And the buoyant force is the sum of all the forces applied  by the fluid surrounding the object.

浮力是物体周围流体施加的所有力的总和。

The magnitude of the buoyant force equals the force of gravity that  would act on the fluid displaced by the object?

浮力的大小等于作用在物体排出的流体上的重力吗？

Here's the issue  with that: structures weigh less under water, or more accurately, their weight is counteracted  by the buoyant force of the water they displace.

问题是：结构在水下的重量更轻，或者更准确地说， 它们的重量被它们排开的水的浮力抵消。

The definition of buoyancy is " the ability or tendency to float in water or air  or some other fluid." And the buoyant force is what causes buoyancy.

浮力的定义是“漂浮在水、空气或其他流体中的能力或趋势”。浮力是导致浮力的原因。

I will add that the composition of the object  which is submerged in the fluid does not affect the buoyant force, only mass of the fluid  displaced by the object and the gravitational field strength determine the buoyant force.

我要补充一点， 浸没在流体中的物体的成分不会影响浮力，只有物体位移的流体质量和重力场强度决定了浮力。