"03194538-n"^^ . . . "optical device consisting of a surface with many parallel grooves in it; disperses a beam of light (or other electromagnetic radiation) into its wavelengths to produce its spectrum"@en-us . . "grating"@en-us . "103194538"^^ . . . . "diffraction grating"@en-us . "0"^^ . . . "103078859"@en-us . . . "102568933"@en-us . . . . . "0"^^ . . . . . "diffraction grating"^^ .