一万只死去的海蜗牛只提炼出一克紫色染料。

10,000 dead sea snails got you just one gram of purple dye.

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例如，物理学可以让你观察并理解世界，但也可以将观察到的现象整合成模型，提炼出理论或定律用以对未来做出预测。

For instance, physics allows you to observe and rationalise the world, but also to integrate observations into models and, sometimes, models into theories or laws that can be used to make predictions.

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他们发现在水中稀释了的乙醇能够提炼出高品质的钻石薄膜。

They found that diluting ethanol in water resulted in high quality diamond films.

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We have to invent a process, a chemical extraction process that will make the production of magnesium cheaper so that we will have the opportunity to avail ourselves of energy-efficient materials.

我们必须发明出一种方法，一种化学提炼方法,能够使生产镁变得更便宜,那样我们才有机会,让我们自己用上高效能的材料。

麻省理工公开课 - 固态化学导论课程节选