optical disk 或 optical discn.Computer Science(名词)【计算机科学】
A plastic-coated disk that stores digital data, such as music or text, as tiny pits etched into the surface and is read with a laser scanning the surface. Also called laser disk光盘:用于存储数字数据(如音乐、文字)的包有塑料的盘片,如附于表面的小凹槽,可以通过激光浏览表面读出信息 也作 laser disk