He calls it "cow power to horsepower." Leonhardt says the challenge is to cost-effectively remove impurities from the manure-derived methane.

VOA: standard.2010.02.23

We ended the day with Bohr's model of the atom, which derived from the conceptualization of Rutherford.

那天课的结尾我们讲了从卢瑟福的概念中，衍生出来的波尔的原子模型。

麻省理工公开课 - 固态化学导论课程节选

If one follows a diet that would be derived from the glycemic index; you're likely to have a pretty healthy diet.

如果一个人遵循基于血糖指数的饮食计划,你会得到一个相当健康的饮食

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

Those are obvious what the differences are, embryonic stem cells are derived from embryos .

这些名称就明确揭示了它们之间的区别,胚胎干细胞是源自于胚胎

耶鲁公开课 - 生物医学工程探索课程节选

Steroid hormones, on the other hand, molecules like testosterone and estrogen, progesterone, the sex steroids that determine sexual characteristics and are important for reproductive function are molecules that are all derived from a similar source.

另一方面,类固醇类激素,像睾丸激素,雌激素,黄体酮这样的分子,性激素决定了性征,它对生殖功能十分重要,这类分子有着相似的来源

耶鲁公开课 - 生物医学工程探索课程节选