{HEAD ~ The nozzles} 21A have {TAIL ~ a relatively small diameter}, for example a few tens of millimeter, to finely nebulize water inside the adiabatic chamber 
have
{ HEAD ~ The nozzles } 21A have { TAIL ~ a relatively small diameter } , for example a few tens of millimeter , to finely nebulize water inside the adiabatic chamber
HEAD HEAD HEAD HEAD HEAD HEAD OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH