{HEAD ~ A multi tube type heat transfer apparatus} includes a plurality of {TAIL ~ heat transfer tubes} disposed in parallel to each other within a shell wall 
{ HEAD ~ A multi tube type heat transfer apparatus } includes a plurality of { TAIL ~ heat transfer tubes } disposed in parallel to each other within a shell wall
HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH