发现旋光基质有外消旋作用。

Racemization is found with optically active substrate substrates.

youdao

有外教教过你们吗？

Were you taught by any foreign teachers?

youdao

点表（wells_pts）和源表（wells）之间有外键关系。

The point table (wells_pts) has a foreign-key relationship with the source table (wells).

youdao

Now this is mostly irrelevant to what we're talking about except for the fact that there are magnetic particles involved and they're really small because it turns out what's inside most of your laptops and desktop computers are these things called hard drives.

其实这与我们现在谈论的话题没什么关系,除了这里的磁性粒子有关系外,它们是很小的因为它们要放在,你的笔记本电脑或者,台式机中被称为硬盘的里面。

哈佛公开课 - 计算机科学课程节选

I mean maybe up the street we whisper, but here we know it. And, so here is a different kind of system where we have a constant external pressure.

或许在街上你们低声细语，但在这里不应该这样，这是另一个系统,我们有一个恒定的外压强。

麻省理工公开课 - 热力学与动力学课程节选

It could be those differences that they experience in their extracellular environment that lead to their choice to either self-renew or to become committed.

有可能就是由于,这种细胞外环境的不同,最终导致它们自我更新,或者成为定向的祖细胞

耶鲁公开课 - 生物医学工程探索课程节选