这幅显微照片是通过扫描穿过样品的电子束而获得的，同时检测器对从样品表面反弹的电子进行追踪，这些电子显示了标本的外形。

This photomicrograph was obtained by scanning a beam of electrons across the sample while a detector kept track of electrons bouncing off its surface, betraying the specimen's outer shape.

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同时通过每件商品上的防盗射频扫描标签，经理可以调用他的销售和库存的快照，或者通过星期六净资产追踪交货情况。

And with anti-theft RFID tags on every product, the manager can call up a snapshot of his sales and inventory, or track incoming deliveries by sat nav.

youdao

同时通过每件商品上的防盗射频扫描标签，经理可以调用他的销售和库存的快照，或者通过星期六净资产追踪交货情况。

And with anti-theft RFID tags on every product, the manager can call up a snapshot of his sales and inventory, or track incoming deliveries by sat nav.

youdao