photoresistance relay photoresistive cell photoresistor photosensitive photosensitive layer photosensitive surface photosensitivity photosensitizer photo sensor photostability photostable photostat photostat paper photoswitch photosynthesis photosynthetic phototechnical film phototelegram phototelegraphy phototopography |
photoresistance relay съпротивително фотореле Търсената дума е намерена |