{HEAD ~ The piston and cylinder assembly} is then used to subject the heated glass to the desired pressure, around 70,000 psi, and this pressure is uniformly transmitted to the heated body of compacted powder that is immersed in {TAIL ~ the glass} 
{ HEAD ~ The piston and cylinder assembly } is then used to subject the heated glass to the desired pressure , around 70,000 psi , and this pressure is uniformly transmitted to the heated body of compacted powder that is immersed in { TAIL ~ the glass }
HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD 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 OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL