In addition, the design must take into careful consideration the overall headroom for meeting {HEAD ~ system demands} during {TAIL ~ such instances}, and thus varying loads require more design complexity 
during
In addition , the design must take into careful consideration the overall headroom for meeting { HEAD ~ system demands } during { TAIL ~ such instances } , and thus varying loads require more design complexity
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH