means of light signalling

acetate-activating enzyme alkalescency barium tetraiodomercurate Belteshazzar caverned out conditioned reactions downward weight bias dual cycle cooling system dutifully gas-discharge etching illumination profile lens transmission moonack ohiolink otdr (optical time domain reflectometry) photovoltaicss Samizu separated presheaf shove-halfpennies spectrocolorimetr