测微密度计 [摄] microdensitometer

显微密度计光学 optics of microdensitometry

自动测微密度计 automatic microdensitometer

侧微密度计 microdensitometer

光学显微密度计 optical microdensitometer

显微密度计 microdensitometer

调制射束显微密度计 [光] modulated beam microdensitometer

微密度计的测定线 microdensitometer tracing

显微密度计测定线 microdensitometer tracing

显微光密度计 [光] microdensitometer