图片被扫描成一种计算机能识别的数字化资料。
Pictures are scanned into a form of digital information that computers can recognize.
对数字化资料进行编码，是通过光盘记录层面上的凹坑来实现的。
Digital data are encoded by means of pits on the recording layer of the disc.
该系统所用的电子航海图数字化资料以该所的电子航海图数据库自动生成系统完成。
The digital information of electronic nautical chart used by this institute is realized by its system of the automatic generation of electronic nautical chart database.
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