If we have a high frequency, what about the wavelength, long or short? All right. Good. So we should always be able to keep these relationships in mind.

如果频率高，那波长是长还是短？,好，不错，我们要记住这些关系,类似的。

麻省理工公开课 - 化学原理课程节选

The topic for this week is cell communication: how mechanisms that cells within a complex organism use to communicate with each other at short distances or long distances.

本周的主题是细胞通讯,即在一个复杂机体中的细胞,采用何种交流机制,在或长或短的距离中相互联系

耶鲁公开课 - 生物医学工程探索课程节选