QR code

A QR code used on a large billboard in Japan, linking to the sagasou.mobi website

QR codes have been used and printed on train tickets in China since 2010.[14]

QR code (abbreviated from Quick Response Code) is the trademark for a type of matrix barcode (or two-dimensional barcode) first designed for the automotive industry in Japan. A barcode is a machine-readable optical label that contains information about the item to which it is attached. A QR code uses four standardized encoding modes (numeric, alphanumeric, byte/binary, and kanji) to efficiently store data; extensions may also be used.

单词	Quick response code
释义	Quick response code 原声例句原来如此英语系列 You may have seen codes like these. They're called QR or " quick response" codes and they mean your camera phone can now be a little like a cashier's scanner. 你应该见过类似的符号。它们被称为二维码（QR）。二维码使手机摄像头具备了扫描功能。英语百科 QR code QR code (abbreviated from Quick Response Code) is the trademark for a type of matrix barcode (or two-dimensional barcode) first designed for the automotive industry in Japan. A barcode is a machine-readable optical label that contains information about the item to which it is attached. A QR code uses four standardized encoding modes (numeric, alphanumeric, byte/binary, and kanji) to efficiently store data; extensions may also be used.
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Quick response code

QR code