Image and bar-code scanning does appear to benefit from decent lighting and images and bar codes not being held at off angles.

图片及条形码扫描技术在扫描进行时，需要足够的光线。

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These simplify the process of selling things by identifying goods at a checkout without the need for laser-scanning a bar code.

它无需对条形码进行激光扫描就能在结帐处辨别货物，从而简化了售卖程序。

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The company's RedLaser bar-code-scanning technology gives more than 14 million users the ability to compare prices across websites while they're in retail stores.

公司的红色条形码识别技术超过超过1400万的用户能通过网站来比较商品价格当他们再零售商店的时候。

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The prototype unit here in Germany was showcased alongside of the GP-1 GPS dongle and a BR-1 bar code scanning module, with the latter meant more for governments and enterprises.

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Using an instrument similar to the scanning bar-code guns at supermarket checkouts, this machine analyses black plastics with a laser.

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Some of them rely on technology other than NFC, such as offering services that let people pay for purchases by sending text messages or by scanning product bar codes using a phone's QR-code reader.

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