QR是快速反应的意思，意指代码中的数据能够迅速解码。

QR code stands for quick response, a reference to how speedily the data they contain can be decoded.

youdao

作为招聘的公司，你想要看到一个潜在的员工是怎样快速反应的。

As someone who's hiring, you want to see how a prospective employee thinks on his or her feet.

youdao

这项研究的一个启示就是：大众的反应时间将会随着需要快速反应的电子游戏的兴起而改善。

One implication of this work is that reaction times in the population will probably improve with the rise of fast-action video-games.

youdao

How would we go about, I mean I don't want to do it because I'll probably get it wrong, but if I wanted to solve out for this X and the Y, since this is a QR class, let's just talk about it a second.

我们怎么解呢,我的意思是我现在不会去计算,因为我可能会算错,但是如果你真的很想解出X和Y的值,介于这是一节需要快速反应的课,那我们花些时间来探讨一下吧

耶鲁公开课 - 博弈论课程节选