UAT DB's nonsystem dfile corrupted. how can I restore it from Prod by rman

I have an UAT env. some non system tablespace's datafile corrupted (one tb one dbfile)
errors look like below and the db could just be in mount state.
Database mounted.
ORA-01157: cannot identify/lock data file 4 – see DBWR trace file
ORA-01110: data file 4: ‘D:\ORACLE_DATA\DATAFILES\ORCL\USERS01.DBF’
When I took them offline, the db could be open.
I could not use rman to recover it although it is in archivelog mode. it is because some corruptions in archived logs.
Now, I would like to recover them from prod db.
How can I do that by using rman/ export import. My DB's version is 10g R2
I appreciate if there are any reference and instructions from all of you.
Many Thanks

you can use data pump export/import instead of traditional exp/imp, if you are oracle 10g or high. These tools are much faster(approximately 10 times) than traditional exp/imp.
There is also another possibility you can use, which is called transportable tablespaces. Of course it will not be convenient if your corrupted datafile is one of the several datafiles of the certaion tablespace. But if your tablespace just consists of this corrupted datafile, you can use this method, which is much faster than export import tools.

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