指纹扫描将使用电子扫描仪，不使用墨水，液体及化学药品。
The finger scan procedure USES an electronic scanner which doesn't contain any ink, liquid or chemical.
条形码读出器就是光电子扫描仪，它们可以把条形码转换为数字代码。
Bar-code readers are photoelectric scanners that translate the bar code symbols into digital code.
条形码读出器就是光电子扫描仪，它们可以把条形码转换为数字代码。
Bar-code readers are photoelectric scanners that translate the bar code symbols into digital code.
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