However, the energies of {HEAD ~ mercury vapor} or {TAIL ~ metal halide UV radiation} are too small to be useful for rapid transport polymerization 
However , the energies of { HEAD ~ mercury vapor } or { TAIL ~ metal halide UV radiation } are too small to be useful for rapid transport polymerization
OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH