The law states that blood flow is proportional to the fourth power of the vessel's internal radius.

定律显示，血流与血管内半径的四次方成正比。

Specifically, the amount of heat they radiate over time is proportional to their temperature raised to the fourth power.

具体来说。相对于时间的辐射热量与其温度升高到四次方有关。

Specifically, the amount of heat that an object radiates over time is proportional to its temperature raised to the fourth power.

确切地说，身体释放的热量是成正比的 它的温度上升到四次方。

We explain the size-flow relationship through a law, and that law states that blood flow is proportional to the fourth power of the vessel's internal radius.

我们通过一个定律来解释大小-流量关系，这个定律表明血液流量与血管内径的四次方成正比。

And it says that heat emitted over time is equal to the emissivity constant x a special number known as the Stefan-Boltzmann constant x the object’s area x temperature raised to the fourth power.

它说随着时间的推移散发的热量等于发射率常数 x 一个称为 Stefan-Boltzmann 常数的特殊数字 x 物体的面积 x 温度的四次方。