At least a portion of the member is in thermal contact with the opening and is made of {HEAD ~ a material reactive} with {TAIL ~ electromagnetic energy} 
with
At least a portion of the member is in thermal contact with the opening and is made of { HEAD ~ a material reactive } with { TAIL ~ electromagnetic energy }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL