理想气体温标它有精确的定义，并能引出绝对零度的概念。
There is an absolute zero of entropy, and that's really what we learn.而熵是有绝对零点的，这就是我们学到的。
No ifs and buts, at absolute zero temperature, this is exactly 9, 192, 631, 770 hertz.这个频率不存在“如果和但是”，绝对零度的条件下，9192631770赫兹，不会有任何偏差。
The temperature scale that turns out to be well'u2014defined and ends up giving us the concept of an absolute zero is the ideal gas thermometer.理想气体温标它有精确的定义，并能引出绝对零度的概念。
Unfortunately, the standard definition of a second relies on what the atom does at a temperature of absolute zero. Real clocks need to run at room temperature, where the shell of electrons puffs up.遗憾的是，一秒钟的标准定义依赖于原子在绝对零度的条件，而实际的时钟需要在室温下运行，室温条件下电子壳层膨胀了。
