wavelength spectrometer

4460 Direct-reading spectrometer

arc-spark direct reading spectrometer

Direct reading spectrometer

Direct-reading spectrometer

GVM—1014 type vacuum direct—reading spectrometer

inductively coupled plasma(ICP) direct reading spectrometer

Optical Direct-reading Spectrometer

PDA-5500Ⅱ direct-reading spectrometer

Photoelectric Direct Reading Spectrometer Model FS

Photoelectric Direct Reading Spectrometer Model FSQ

Photoelectric direct-reading spectrometer

plasma direct reading spectrometer

dual-wavelength Double Wavelength Spectrophotometry

1338 nm single wavelength

2 μm wavelength

2-D time wavelength code

2-dimensional wavelength-time code

2μm wavelength