1. 
   FDH
   acronym: Fixed Dynamical Heating
   Found op http://cdiac.ornl.gov/pns/acronyms.html#F
   
   
2. 
   FDH
   Forum for Databehandling i Helsesektoren. Norwegian Society for Medical Informatics
   Found op http://www.encyclo.co.uk/local/20895
   
   
3. 
   fdh
   1) Fixed dynamical heating
   Found op http://www.mijnwoordenboek.nl/EN/crossword-dictionary/fdh/1
   
   

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