First, SOx in the gas is absorbed by {HEAD ~ the solution} of {TAIL ~ polyethylene glycol} 
of
First , SOx in the gas is absorbed by { HEAD ~ the solution } of { TAIL ~ polyethylene glycol }
OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL