光学工具检测仪

optical null double-beam farinfrared spectrometer

head, optical with filters for movable information storage

ion-electron-optical analytical instrument【分化】

elliptical-jacket polarization-maintaining optical fiber

teletype optical projection system【光】

spacing discharge tube, spacing of electron-optical or ion-optical arrangements

optical pump magnetometer【地物】;optical pumping magnetometer【地物】

optical sectioning microscopy