| 单词 | constant-deviation spectrometer | 
| 释义 | constant-deviation spectrometer [¦kän·stǝnt ´dē·vē¦ā·shǝn spek`träm·ǝd·ǝr]  SPECTROSCOPY A spectrometer in which the collimator and telescope are held fixed and the observed wavelength is varied by rotating the prism or diffraction grating.  | 
	
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