{HEAD ~ This seal} could also be accomplished by locking into the plug and hydraulically compressing {TAIL ~ the seal} 
accomplished by hydraulically compressing
{ HEAD ~ This seal } could also be accomplished by locking into the plug and hydraulically compressing { TAIL ~ the seal }
HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH REL REL OTH OTH OTH OTH OTH REL REL TAIL TAIL TAIL TAIL TAIL TAIL