{HEAD ~ A method} 1, wherein {TAIL ~ the microwave radiation} is applied to the wood as impulses of predetermined duration and separated by set time intervals or as random impulses to provide treated wood having treated and untreated regions 
wherein
{ HEAD ~ A method } 1 , wherein { TAIL ~ the microwave radiation } is applied to the wood as impulses of predetermined duration and separated by set time intervals or as random impulses to provide treated wood having treated and untreated regions
HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH