upthrust

The life jacket provides enough upthrust to keep a person afloat.

救生衣提供足够的浮力使人保持漂浮。

用法提示：此处为名词，指救生衣提供的向上浮力。

In the experiment, the upthrust on the wooden block was measured with a spring scale.

在实验中，用弹簧秤测量木块所受的浮力。

用法提示：此处为名词，指水对物体产生的向上浮力。

A ship floats because the upthrust of the water equals its weight.

船漂浮是因为水的浮力等于它的重量。

用法提示：此处为名词，指水的浮力（向上推力）。