A carve tool is presented actuated by PZT with double lever magnify mechanism, and integrated with the bionic robot. Experiment of carving on CD disk surface shows the feasibility of the robot.

研制压电陶瓷驱动双重杠杆放大的刻字作业工具，并与微定位机器人结合实现了光盘表面的刻字作业，验证了系统的有效性。

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A CD-ROM is a separate disk that contains lots of information.

光驱是一个包含了大量信息的独立磁盘。

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One CD-ROM disk can hold over 100,000 pages of text.

一张CD光盘能容纳10万多页的文字资料。

《柯林斯英汉双解大词典》

Think of it: you can toss that kludgey 20-disk CD-changer out of the car boot and still have every tune you own at your disposal when on the road.

CNN: All Music, All the Time

The modules never come with a disk or CD-ROM, and there are no drivers to transfer or InstallShield wizard to run.

CNN: module

Interrupting the reboot process only long enough to change the initial boot device in BIOS from CD-ROM to disk, I impatiently watched Linux boot, waiting for the login prompt to appear.

CNN: The tale of the gratuitous GUI