physical constant

基本解释

Finally, in 1983, it was tied to a fundamental physical constant, the speed of light, becoming the distance light travels in 1/299, 792, 458 of a second.
最终，在1983年，人们将“米”与光速这种最基础的物理常数绑定了起来。
And it says that the divergence of the electric field is equal to, so this is a just a physical constant, and what it is equal to depends on what units you are using.
它说的是，电场的散度等于，这是一个物理常数，它等于什么，是基于所用的单位。
This paper analyses the physical constant constructing by dimensional method and introduces the important mean of dimension of quantity in physical constant constructing.
采用量纲的方法分析物理常数的构造，讨论了物理量的量纲在物理常数构造中的重要意义。

Sure, there are some physical attributes that are fairly constant around the globe, like facial symmetry and a healthy head of hair.
FORBES: Can The Media Help Shift Our Beauty Ideals Back In A Healthy Direction?
Even worse were the constant comments about her physical appearance.
FORBES: Couric Bows Out as Poster Woman for Implicit Bias