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