1. 光盘; 光学刻度盘：optical directional filter 定向滤光器 | optical disc 光盘; 光学刻度盘 | optical disk 光盘; 光学视面
2. 光盘片：光盘记录材料Optical Disk Data Storage Materials | 光盘片Optical Disc | 光盘片-材料Optical Disc - Materials
noun
1. optical disc的解释
1. a disk coated with plastic that can store digital data as tiny pits etched in the surface
is read with a laser that scans the surface
Synonym: optical disk