伪造者用一台光学扫描器把正式文件变成数字图像，存放在计算机的储存器中。
The forger USES an optical scanner to turn a legitimate document into a digital image stored in the computer's memory.
该系统由红外聚焦光学子系统、六维精密扫描工件台及数据采集子系统构成。
Thesystem is composed of a IR focusing Subsystem, a precision scanning six dimensions stage anda data acquisition module.
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