. . . "electro-optical surveillance system" . "electro-optical sensor" . . "electro-optical turret" . "electro-optical camera" . . . "electro-optical sensors" . "electro-optic" . . "electro-optical fire control systems" . "electro-optic sensors" . "electro optical imagery" . . . . . "Electro-optical sensor" . "Electro-optical suit" . "EO" . . "Electro-optical" . "electro-optical" . . "Electro-optical_sensor" . . "Electro-optical sensor" . "Electro-Optical" .