This type of authentication can be seen as a digital analog to having a physical token.

这种类型的认证可以视为对物理标记的数字模拟。

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Since last year, this store has offered coupons to people who need digital analog converter boxes for their older TVs.

自去年起，这家商店就开始给家有老式电视、需要数字模拟转换盒的人提供优惠券。

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In a world of precision-engineered digital cameras, the colorfully analog Blackbird fly is a strange bird—one that took almost 15 years to hatch.

在这样一个高精密度数码相机的世界，像黑鸟飞这样的彩色模拟相机属特异的一种，因为它花费15年的时间投入飞行拍摄。

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It's the digital analog to arms sales, and like arms sales, it will not be cheap.

WSJ: Eric Schmidt and Jared Cohen: The Dark Side of the Digital Revolution

The Audience codec subsystem consists of analog to digital converters (ADCs) on the record path and digital to analog converters (DACs) on the playback path.

ENGADGET: Audience eS515 Smart Sound Processor brings three-mic support and selective audio capture to phones

Then we switched to digital but analog was still operational and the antennas were still external.

FORBES: The iPhone 4 Antenna Unravelled