[Koha] Combine subfields into single with marcedit

[soulemane moumie]

Hi!
I am new to koha. I have tried many time to import my converted xls-->mrk-->mrc file into koha but ended up with many item for a single record.

How can I convert subfield of 952 into a single line using marcedit 5. ?Here is one sample record can you also point out what is wrong with this record ? Thanks.

Koha 3.08.06 
Ubuntu 12 LTS


=LDR  00639nam a2200265Ia 45e0
=008  130115s9999\\\\xx\\\\\\\\\\\\000\0\und\d
=040  \\$bENGLISH
=041  \\$aENGLISH
=082  \\$a600/INT
=100  \\$aAUT, ISESCO, WHO
=245  \\$aPROMOTION OF SUITABLE NEW TECHNOLOGY
=260  \\$bISESCO AND WHO
=260  \\$c2001
=650  \\$aENGINEERING
=650  \\$vENGINEERING
=650  \\$xMECHANICAL AND CHEMICAL ENGINEERING
=651  \\$vENGINEERING
=651  \\$xMECHANICAL AND CHEMICAL ENGINEERING
=942  \\$cBK
=952  \\$8NFIC
=952  \\$aIUT
=952  \\$bIUT
=952  \\$d7/17/2007 12:00:00 AM
=952  \\$o600/INT
=952  \\$p171



Moumié Soulémane
Assistant Programmer, OCP, MCTS, JCP
Department of Computer Science Engineering
Islamic University of Technology(IUT)
Board Bazar, Gazipur-1704, Bangladesh.
Cellular: +880192-1628880,+8801921628880