Thereafter, {HEAD ~ the rectifying circuit} rectifies {TAIL ~ the intermediate currents current} to produce a rectified current 
rectifies
Thereafter , { HEAD ~ the rectifying circuit } rectifies { TAIL ~ the intermediate currents current } to produce a rectified current
OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH