Furthermore, the use of a foamed plastics material for forming the pipeline renders additional encasing of the pipeline with a suitable insulation material to reduce {HEAD ~ thermal losses} dispensable as {TAIL ~ the foamed plastics material} assumes the function of thermal insulation in addition to the air conduction function 
dispensable as
Furthermore , the use of a foamed plastics material for forming the pipeline renders additional encasing of the pipeline with a suitable insulation material to reduce { HEAD ~ thermal losses } dispensable as { TAIL ~ the foamed plastics material } assumes the function of thermal insulation in addition to the air conduction function
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 HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH