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

QR是快速反应的意思，意指代码中的数据能够迅速解码。

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Passengers 'shop' by scanning QR - Quick Response - codes of the items they want to buy using their . These goods are later delivered to their home address.

乘客们只需用 智能手机 扫描他们所购买商品的快速反应码就可以轻松购物，这些商品不久就会送到家门口。

youdao

Passengers' shop 'by scanning QR - Quick Response - codes of the items they want to buy using their smartphones. These goods are later delivered to their home address.

乘客们只需用智能手机扫描他们所购买商品的快速反应码就可以轻松购物，这些商品不久就会送到家门口。

youdao

When scanned, a 1.5in (4cm) Quick Response (QR) code on the memorial launches a biography web page of the deceased on a smartphone or computer.

BBC: QR codes on headstones offered by Poole undertakers

As well as free wi-fi, it said the money would also fund signs with Quick Response (QR) codes which visitors would be able to scan on their smart phone to be directed to events and offers in the area.

BBC: Mansfield residents and businesses to chip in for wi-fi

Quick Response, or QR, codes are a type of barcode loaded with information that, when scanned with a phone or other device, can open a web page, social media site or video (users first need to download an app, available for iPhone, iPad and Android).

BBC: Rio de Janeiro brings QR codes to its streets