据报道，在低于零下100℃的温度下，癌症可以得到控制。

It is reported that cancer can be controlled at a temperature lower than 100℃ below zero.

youdao

当温度低于零度时，水就会凝结成冰。

When the temperture is below zero, water freeses and ice forms.

youdao

所有这些减小了财政乘数，潜在的可能低于零。

All that would reduce the fiscal multiplier, potentially to below zero.

youdao

So this is the percent error and what you see here is that if the number is below the zero line it means people underestimated the calories, and the bars that go above means people overestimated the calories.

这是百分比误差,你们看,如果数字低于零,这表示人们低估了卡路里,高于零表示人们高估了卡路里

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

So in this experiment here, delta p is less than zero. You need to have this whole thing greater than zero. So delta T is less than zero as well. So if you're below the inversion temperature and you do the Joule-Thomson experiment, you're going to end up with something that's colder on this side than that side.

所以在这个实验中，Δp小于零,这全部都大于零,因此ΔT也小于零,所以如果在低于转变,温度的情况下做焦耳-汤姆孙实验,最后的结果是,这边的温度比这边低。

麻省理工公开课 - 热力学与动力学课程节选