The column 7 and the entire apparatus may be wrapped in {HEAD ~ a thermally controlled housing} 11 as represented in {TAIL ~ herringbone patterned fill} in 
as represented in
The column 7 and the entire apparatus may be wrapped in { HEAD ~ a thermally controlled housing } 11 as represented in { TAIL ~ herringbone patterned fill } in
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH