The defrost vessel 13, wherein at least one antenna includes a plurality of antennas extending from outside of the space through the cover into the space, one of the antennas extending through a coupling hole at {HEAD ~ a center} of {TAIL ~ the cover} 
The defrost vessel 13 , wherein at least one antenna includes a plurality of antennas extending from outside of the space through the cover into the space , one of the antennas extending through a coupling hole at { HEAD ~ a center } of { TAIL ~ the cover }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL