The present invention pertains to {HEAD ~ a method} and apparatus for improving {TAIL ~ contact} between a liquid and a gas, either or both of which may be a reactant 
for improving
The present invention pertains to { HEAD ~ a method } and apparatus for improving { TAIL ~ contact } between a liquid and a gas , either or both of which may be a reactant
OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH REL REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH