睡眠并不是一种人体功能： 睡眠是一种生物生理系统，类似于心血管系统、神经系统等。

Sleep Isn't Just a Bodily Function: Sleep is a biological, physiological system, akin to the cardiovascular system, the nervous system and so on.

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如果它可以杀死病毒和细菌工业使用时，为什么我们不能用在医学上，并将其应用到人体功能？

If it can kill viruses and bacteria when used industrially, why can't we use it in medicine, and apply it to human function?

youdao

医学是对人类健康和疾病治疗的研究。我们可以了解人体功能，生病的原因以及怎样治疗疾病。

Medicine is the study of human healths and treatment of diseases. We can understand body functions, what causes us to fall sick and how to treat diseases.

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As we learned about how humans operate we could start to design machines that would help humans when they weren't functioning properly.

当我们了解了机体如何运作,就可以设计出器械,在人体某些部位功能失常时提供帮助

耶鲁公开课 - 生物医学工程探索课程节选

So this is another kind of engineering, an engineering not to look more closely at how humans work but an engineering to improve their function when it's failing.

这便是另一种工程技术,它并不研究人体运作原理,而是强化某部位的功能,如果这个部位失效了的话

耶鲁公开课 - 生物医学工程探索课程节选

Now there's something very wrong about this diagram, in that it's showing these functions as sort of centralized in the core, and of course that's not how your body is organized.

这张图上有些东西是不对的,图上显示这些功能都围绕着一个核心,当然,这绝不是人体的组织形式

耶鲁公开课 - 生物医学工程探索课程节选