Modern science is based on observation on experiment, and on measurement.

现代科学是建立在观察、实验和度量的基础上的。

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It's extremely cruel to perform an experiment on live animals.

对动物活体进行实验是一件极其残忍的事情。

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When the researchers repeated the laboratory experiment on the second and third nights they found the left hemisphere could not be stimulated in the same way during deep sleep.

当研究人员在第二和第三晚重复实验室里的实验时，他们发现在深度睡眠时左脑不能以同样的方式受到刺激。

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On our show this week, we will tell about what is being called the world's largest tornado experiment.

VOA: special.2009.06.09

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。

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Again they've just done that experiment and seen the effects of that on the point measurement with the whole pro.

通过实验,他们便能看到其效果,通过在整个过程中,对点的测量。

麻省理工公开课 - 媒体、教育、市场课程节选

To my left was a gal working with the European Space Agency on an experiment to be flown on Atlantis.

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And what we want to do is eliminate the need for people to check up on the experiment itself.

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Massachusetts right now embarked on an experiment where they mandated coverage.

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