In America and Europe, three types of bar code, called QR code, Data Matrix and Ezcode, are likely to become common. The first two are free, open standards.
在美国和欧洲，有三种条形码很有可能会普及，它们分别是QR码，Data Matrix和Ezcode。前两种是免费使用和标准公开的。
In America and Europe, three types of bar code, called QR code, Data Matrix and Ezcode, are likely to become common. The first two are free, open standards.
在美国和欧洲，有三种条形码很有可能会普及，它们分别是QR码，Data Matrix和Ezcode。前两种是免费使用和标准公开的。
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