a fraction of a second

基本解释

Especially when we feel strong emotions, those expressions appear on our faces, even if only for a fraction of a second.
她说，“尤其是当我们遇到强烈感情的时候，这些表情会出现我们的脸上，哪怕仅有一秒。
Then there are plans to examine the gravitational wave background, which would show what the universe looked like a fraction of a second after the Big Bang.
接下来的计划是检查引力波背景，这可以显示大爆炸后瞬间宇宙的样子。
You've learnt what the words mean, but you have abstract and unconscious rules that take these words, figure out the order, and in a fraction of a second, give rise to understanding.
虽然你已经知道了这些单词的意思,但却是你所拥有的抽象且无意识的规则,让你认清单词,确认语序,然后在一瞬间让你理解整个句子

I think its a major blow to the nations medical fraternity. It takes six years to produce a doctor, and within a fraction of a second, all that has disappeared. A week ago,Dr.Laroche was in Somalia and met with the minister of health.
When a brief pulse of electricity is sent to the read/write head it flips on a tiny electromagnet for a fraction of a second.
当一个简单的电脉冲被送到读写头,它会短时间内出现一个小的电磁。
哈佛公开课 - 计算机科学课程节选
Those of you who know other languages might have in your heads 200,000 words or 300,000 words and you're accessing them in a fraction of a second.
你们当中掌握其他语言的人,可能会在头脑中记住两万到三万个词,你们能在瞬间运用它们
耶鲁公开课 - 心理学导论课程节选

If I want to filter or collapse records and hit match, it is done in a fraction of a second.
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