The phrase "a duplicate of a" is correct and usable in written English.
It can be used when referring to an exact copy or reproduction of something, typically in contexts involving documents, files, or objects.
Example: "Please send me a duplicate of a previous report for my review."
Alternatives: "a copy of a" or "an exact replica of a".
Every work is a duplicate of a previous piece.
For the first 50 years of the recording era the manufactured cylinder or disc was a duplicate of a live performance.
To make clear the difference between the two options, stem cell researchers developed the labels "reproductive cloning" (for, say, creating a duplicate of a person from his skin cells) and "therapeutic cloning" (for stem cell research to cure deadly diseases), vowing to do only the latter.
The machine-number mutation operator (SM2) changes the matrices N P M, t, N p l u s M, t and N m i n u s M, t by adding or removing a duplicate of a machine type or concurrently removing a duplicate of a machine type and then adding a duplicate of another machine type.
So being a rock is extrinsic, since a duplicate of a large part of a rock might be a rock if it is separated from the rest of the rock.
This article has been retracted by the Editor in Chief of Mathematical Sciences as it has been brought to his attention that it's a duplicate of a paper that had first been submitted to Iranian Journal of Mathematical Sciences and Informatics and published there under the same title in iss.
The new building is a duplicate of an adjacent building that was converted and renovated two years ago.
An over-budget satellite navigation system that is years from completion, largely a duplicate of an American system already widely used in Europe and unlikely ever to generate much revenue would seem to be in the budget cutters' cross hairs.
An over-budget satellite navigation system that is years from full completion, largely a duplicate of an American system already widely used in Europe and unlikely ever to generate much revenue would seem to be in the budget cutters' cross hairs.
I still wanted it to be a painting and not just a duplicate of an Amish quilt so I left the spacing that the Amish would have stitched a boarder on.
