When the reactor is slanted, care must be taken to ensure {TAIL ~ that no air pockets form} in {HEAD ~ the coolant channels} 
When the reactor is slanted , care must be taken to ensure { TAIL ~ that no air pockets form } in { HEAD ~ the coolant channels }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD