astrographic doublet meaning in English
天体照相双合透镜
Related Words
- astrographic
- astrographic refractor
- astrographic chart
- astrographic catalogue
- astrographic camera
- astrographic catalog
- astrographic position
- astrographic objective
- airborne astrographic camera
- aacs airborne astrographic camera system
- astrographic catalogue
- astrographic chart
- astrographic objective
- astrographic position