{TAIL ~ Compressed hydrate forming gas} is combined in {HEAD ~ a pipe} with the liquid water under locally supercooled conditions 
{ TAIL ~ Compressed hydrate forming gas } is combined in { HEAD ~ a pipe } with the liquid water under locally supercooled conditions
TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH