{HEAD ~ a cylindrical coil member} disposed coaxially within {TAIL ~ an inner space} of the housing member 
disposed coaxially within
{ HEAD ~ a cylindrical coil member } disposed coaxially within { TAIL ~ an inner space } of the housing member
HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH