【译】研究人员用X射线光来分辨尺寸为百亿分之一米（即0.1纳米）的微小结构，这种尺寸结构接近氢原子直径。

Researchers usethese X-ray flashes to resolve structures as small as one ten billionth of ameter (0.1 nanometer) in size. That is roughly the diameter of a hydrogen atom.

youdao

刀锋的厚度仅相当于80个原子，即发丝直径的五千分之一到一万分之一左右，比市场上的普通刀片要锋利非常多。

They are just 80 atoms thick on their cutting edge - around 1/10,000th or 5,000 times thinner the width of a hair and far sharper than any of common blades on the market.

youdao

根据不同直径CNT的缺陷位、不定型碳的丰度和碳原子的应力能，分析了其抗电化学氧化性差异的原因。

The difference in electrochemical stability of CNTs is attributed to the difference in CNT structure: the amount of defects and amorphous carbon and the carbon atom strain caused by the curvature.

youdao

And, that's a good thing to know because if you come out with an answer that's somewhere near the diameter of the universe and it's supposed to be the diameter of an atom, then you will know that you probably made a mistake.

这是我们需要知道的,因为当你做一道题得到的答案,是宇宙的直径,而正确答案是原子直径时，你能很快发现你的错误。

麻省理工公开课 - 固态化学导论课程节选

In addition, if we compare this to the diameter of an atom, which is on the order of somewhere between one and ten angstroms, now we're seeing that, in fact, this wavelength is significantly larger than its environment.

另外，如果我们把它,与原子的直径相比，原子直径近似1到10埃米之间,我们现在来看看，事实上，这个波长比它所处的环境大很多。

麻省理工公开课 - 化学原理课程节选