{HEAD ~ The consolidation forces} are generated by {TAIL ~ gas pressure} rather than liquid pressure, so equipment leaks, if any, do not result in contamination 
are generated by
{ HEAD ~ The consolidation forces } are generated by { TAIL ~ gas pressure } rather than liquid pressure , so equipment leaks , if any , do not result in contamination
HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH