Some U. s airports will soon begin using what's known as "backscatter X-ray technology" to scream screen passengers.

美国的一些机场很快将开始使用一种所谓的“反向散射X射线技术”对乘客进行检查。

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One uses "backscatter" technology to produce an X-ray image of a person.

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There are two types one bounces electromagnetic waves off the body to create an image like this and the other uses backscatter technology to project low level X-ray beams over the body resulting in images like this.

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