The scanning camera scans the concerning area and the staring camera tracks the found targets, when the early-warning satellite is on-orbit.

预警卫星在轨工作期间，星载扫描相机将对关注区域进行南北往复扫描，凝视相机对发现的目标进行跟踪探测。

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Consumers then view these company scores while they shop, by scanning product barcodes with their mobile phone camera or using a widget to view scores while browsing online.

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Cardio allows users to make payments by "scanning" the front of their credit card using the camera on an Android or Apple iOS device.

BBC: Paypal buys the Cardio credit card scanning service

As you can see from the slide above, the slate will sport both a 1.3MP front-facing camera and an 8MP rear-facing camera "with illumination and aiming" for barcode scanning.

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