"111428379"^^ . "beam"^^ . . . . . . . . . . . . "a group of nearly parallel lines of electromagnetic radiation"@en-us . . "a group of nearly parallel lines of electromagnetic radiation"@en-us . . . . "electron beam"@en-us . . "110689864"@en-us . . . . "11428379-n"^^ . . . . . "beam"@en-us . "0"^^ . "ray"@en-us . . . "0"^^ . .