A laser generating device for generating laser beams by exciting {HEAD ~ radiant light} in laser rods by {TAIL ~ irradiation} of sunlight is installed in space 
by
A laser generating device for generating laser beams by exciting { HEAD ~ radiant light } in laser rods by { TAIL ~ irradiation } of sunlight is installed in space
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH