The base insulator holds {HEAD ~ a terminal} having {TAIL ~ an end portion} bent by a bending angle β 
The base insulator holds { HEAD ~ a terminal } having { TAIL ~ an end portion } bent by a bending angle β
OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH