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