与条形码相比，这类标签可以包含更多信息，并可以从远处被扫描。

These contain far more information than bar codes and can be scanned remotely.

youdao

与条形码相比，这类标签可以包含更多信息，并可以从远处被扫描。

These contain far more information than bar codes and can be scanned remotely.

youdao