This is the 8463rd most frequent Chinese word.
qr
There is no Chinese word "qr"; it may refer to "QR code," a type of barcode for quick response.
In this sentence, 'qr' (QR) is used to refer to 'QR codes', which are a type of matrix barcode used for storing information.
我正在研究qr码的生成方式。
I am studying how QR codes are generated.
Here, 'qr' (QR) refers to the QR code used as a tool for accessing additional digital resources.
这个产品的说明书上有一个qr，扫描后可以浏览安装视频。
There is a QR code on the product's manual that, when scanned, leads to the installation video.
In this example, the term 'qr' (QR) denotes the function within WeChat for social connectivity using QR scanning.