Its lower fixed point is absolute zero.

其低端固定点温度是绝对零度。

youdao

And our other reference point is the triple point of water - reference points become zero Kelvin, absolute zero, and the triple point.

而使用绝对零度，它与压强无关，是最低的温度，另一个参考点是水的三相点。

youdao

The absolute zero angle can be defined at the biggest fringe amplitude point, so this method can also achieve absolute angle measurement.

干涉条纹幅度最大点处确定为绝对零角度位置，因此该方法可以实现角度的绝对测量。

youdao

And our other reference point is the triple point of water - reference points become zero Kelvin, absolute zero, and the triple point.

而使用绝对零度,它与压强无关,是最低的温度，另一个参考点是水的三相点。

麻省理工公开课 - 热力学与动力学课程节选