A lot of times we talk about these kind of distances either in nanometers or in angstroms so we can say this is 70 angstroms.

我们在讨论此类的距离时,很多都用到纳米和埃米的单位,所以它的波长是70埃米。

麻省理工公开课 - 化学原理课程节选

Movement down a concentration gradient occurs fairly rapidly over short distances like a micron or so, like the size of a bacterium.

顺浓度梯度扩散在一微米左右的短距离内,相当迅速,一微米相当于一个细菌的大小

耶鲁公开课 - 生物医学工程探索课程节选

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