{HEAD ~ The cylinder} is filled with {TAIL ~ a liquid or solid polymer material} having a high bulk modulus of compressibility which gives the spring volumetric stiffness 
is filled with
{ HEAD ~ The cylinder } is filled with { TAIL ~ a liquid or solid polymer material } having a high bulk modulus of compressibility which gives the spring volumetric stiffness
HEAD HEAD HEAD HEAD HEAD HEAD REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH