In a sense {HEAD ~ the SWQM process} is an alternative to {TAIL ~ the classical Solvay process} that is used worldwide to produce soda carb 
In a sense { HEAD ~ the SWQM process } is an alternative to { TAIL ~ the classical Solvay process } that is used worldwide to produce soda carb
OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH