The temperature records also differ slightly because the point of reference that each group uses to calculate global temperature is different.

温度的记录间的细微差别的原因还有一点是不同研究所运用的测量温度的参考不一样。

youdao

So the concept of an absolute zero, a temperature below which you just can't go, that's directly out of the scheme here, this linear interpolation scheme with these two reference points.

这就是绝对零度，这样，从线性插值的图像出发，我们得到了绝对零度的概念，你永远无法达到,低于绝对零度的状态。

youdao

Reference source outputs a stable reference signal which is independent of power supply voltage, temperature and process.

其输出的基准信号稳定，与电源电压、温度以及工艺的变化无关。

youdao

So, you assign values to very specific states of matter and call those the reference points for your temperature. For instance, freezing of water or boiling of water, the standard ones.

那么你对物质的,某些特殊状态指定数值,把它们叫做你的温度的参考点,比如水的冰点或沸点,它们都是标准。

麻省理工公开课 - 热力学与动力学课程节选