The scientists were able to replicate the gene variation in a strain of mice and found that the mice needed less sleep than usual, too.

科学家能够在一种老鼠的身上复制这一基因变异，结果发现，这种老鼠需要的睡眠时间也比平常少了。

youdao

He had a definite strain of snobbery in him.

他这个人明显有一股势利小人的气味。

《牛津词典》

We have a problem here, if we're thinking about keeping things at the lowest energy, so there's a lot of ring strain in the system.

我们这里有个问题，如果我们考虑要把能量降到最低，那么系统中应有很多环张力。

youdao

Since a vast majority of the refugees are Sunni Muslims, Christian leaders fear such a large influx of citizens could tilt the sectarian balance, as well as increase competition in the job market and strain Lebanon's economic resources.

VOA: standard.2010.06.29

So, we have a problem here if we're thinking about keeping things at the lowest energy, so there's a lot of ring strain in the system.

现在有个问题,我们考虑要把能量降到最低，所以环上有许多应力。

麻省理工公开课 - 化学原理课程节选

It was found in strain R, a particular strain of E.coli, and it was the first one found, There's a nomenclature that's evolved for this.

酶被发现于R菌株,大肠杆菌中一种特别的菌株,又是被发现的第一种内切酶,有一种专门为此制定的命名法

耶鲁公开课 - 生物医学工程探索课程节选

Other Antarctic discoveries include an extract from green algae for use in cosmetic skin treatment, and anti-tumour properties in a strain of yeast.

BBC: NEWS | Science/Nature | Antarctica's resources 'at risk'

And in a surprising development, a researcher in Switzerland discovered a special strain of fungus that can make an ordinary violin sing like a Stradivarius.

ENGADGET: Inhabitat's Week in Green: GPS shoes, shape-shifting bicycle and a wheelchair helicopter

More recently, there have been worries about Severe Acute Respiratory Syndrome (SARS) in 2003 and a strain of flu known as H5N1 in 2008, though neither created the pandemic researchers feared they might.

ECONOMIST: A new virus worries a twitchy world