显微光密度计 [光] microdensitometer

飞点扫描显微光密度计 flying-spot microdensitometer ; spot microdensitometer

积分视频显微光密度计 integrating video microdensitometer

扫描反射显微光密度计 scanning reflective microdensitometer

扫描显微光密度计 scanning microdensitometer

扫描透射显微光密度计 scanning transmission microdensitometer

显微光学密度计 microphotodensitometer

微光显像密度计 micro-photo-densitometer

显微密度计光学 optics of microdensitometry