"102917907"@en-us . . "103520732"@en-us . . "lens"^^ . "0"^^ . . "electronic equipment that uses a magnetic or electric field in order to focus a beam of electrons"@en-us . . . . "0"^^ . "lens"@en-us . . . . . . "electron lens"@en-us . . "103656957"^^ . . . . . . . "03656957-n"^^ . . . .