{HEAD ~ The method} 2 wherein the composite film is wrapped around {TAIL ~ a pipe} containing a volume of water 
{ HEAD ~ The method } 2 wherein the composite film is wrapped around { TAIL ~ a pipe } containing a volume of water
HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH