duplicate copy in a sentence

Examples

1. The user is uploading duplicate copies of an image for use on the article Khmer sculpture.
2. In computing, "'data deduplication "'is a specialized data compression technique for eliminating duplicate copies of repeating data.
3. No duplicate copies were maintained, according to the records administration, nor was a microfilm copy ever produced.
4. Multi-part messages, with duplicate copies of the same content in different formats, increase the size even further.
5. This is due the fact that purifying selection acting on a duplicated copy is not very strong.
6. The Harleian Society also printed the " Marriages " from a duplicate copy of Chester's manuscript in 1887.
7. A duplicate copy of this order is given to the bankruptcy inspector who serves it on the debtor.
8. Duplicate copies of Wikipedia articles do not notability make, so I think we can kill this fairly easily.
9. New genes can be generated from an ancestral gene when a duplicate copy mutates and acquires a new function.
10. I asked him to give more sources, but the sources are just a duplicate copy of the original source.