Center disk refers to the drafting instrument that protects the paper surface from damage when drawing multiple concentric circles with a compass.
Ref: 122441/2006-09-25

Other Database Pages Exist for this Phrase:
center (The US-amarican term for "centre" (UK-English))
Drafting (Drafting revolves around the process of ...)
Disk (Diskis defined as a memory device which uses a ...)

Alternative Spellings (Synonyms): Disks
List of books: Center,disk

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