对引擎的性能在不同的挡上做了试验。

The performance of the engine was tested at different settings.

《牛津词典》

对进一步应用离子注入强化精密轴承表面的工作做了试验研究。

Furthermore, application of ion implantation to strengthening surface of precision bearing race has been studied.

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为了验证它，我不得不用一只活的青蛙做了试验，但是预想的结果并未发生。

To prove it I'd have to cook a live frog and that's not going to happen.

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Cummings actually boldly experimented with this principle and he attracted the attention of the linguists, particularly a linguist named Dell Hymes.

对此，卡明斯做了一个大胆的试验,吸引了语言学家的注意，特别是德尔海默斯。

耶鲁公开课 - 文学理论导论课程节选

Important lesson, so that there would be some predictability in the results and I would have some, if you will, smoke test for knowing whether or not I was getting, my code seemed to be working.

这很重要，因为这样我就可以预测,结果会是多少了，如果你愿意，我们可以做烟气试验,来看我的代码是否工作正常。

麻省理工公开课 - 计算机科学及编程导论课程节选

To test this, the psychologist Harlow performed a series of ingenious experiments with nonhuman primates wire mothers distinguishing between what he called "wire mothers" And you'll see illustrations of this to follow.

为了验证，心理学家哈洛,用非人类灵长类做了一系列独创性试验,区别“,下面你可以看到实验描述。

耶鲁公开课 - 心理学导论课程节选