{TAIL ~ Lips} 38 define {HEAD ~ an insertion opening} 42 therebetween through which electrical receptacle 16 may be inserted into C shaped channel 18 
{ TAIL ~ Lips } 38 define { HEAD ~ an insertion opening } 42 therebetween through which electrical receptacle 16 may be inserted into C shaped channel 18
TAIL TAIL TAIL TAIL TAIL OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH