各种“不接触”支付系统都依赖“短距离通讯”（NFC）技术。
The various "contactless" payment systems rely on a technology called "near-field communication" (NFC).
蓝牙技术是一种短距离无线通讯技术。
Bluetooth is a kind of short-range wireless communication technology.
蓝牙技术是一种短距离无线通讯技术。
Bluetooth is a kind of short-range wireless communication technology.
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