strain at

基本解释

As a result, it has long been theorized that a person could be sickened with more than one cold strain at the same time.
因此，一直以来理论上认为，一个人可能在同一时间感染上不只一种感冒病株的。
On top of that, if an animal or human is infected with more than one strain at the same time, those strains may swap genes.
更严峻的是，当动物或人同时感染两种以上的病毒时，这些病毒会发生基因互换。
This technique, patented by CNRS in September 2007, will in all likelihood become the leading method for measuring crystal lattice strain at the nanometer scale.
该方法已于2007年9月被CNRS申请了专利，极可能成为将来纳米尺度下用来测量晶格形变的首选方法。

(Speaking) But a study at the University of California Berkeley found that 3-D movies can cause eye strain.
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
The official number is secret, but news reports say the general wants about The request is controversial, not least because with the U.S.troop level in Iraq expected to remain around its current 120,000 for at least several more months, the strain on the U.S.Army is considerable.

To date, no such changes have been detected, but Dr Freund argues that the strain gauges deployed at the moment are too near the surface to pick up shifts that happen at the depths where earthquakes occur.
ECONOMIST: Predicting earthquakes