{TAIL ~ A reactor} comprising {HEAD ~ an annular iron core} constituting a closed magnetic path and a conductor wound on the iron core 
{ TAIL ~ A reactor } comprising { HEAD ~ an annular iron core } constituting a closed magnetic path and a conductor wound on the iron core
TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH