index-dispersion relation
折射率-色散关系

• Astigmatizer
• astigmatometer
• astigmator
• astigmatoscope
• astigmatoscopy
• astigmia
• astigmometer
• aston
• Aston Dark Space
• aston spectrum
• astral lamp
• astroballistic
• astro-compass
• astrodome
• astrograph
• astrographic objective
• astrolabe
• astrometer
• Astrometry
• astronaut
• astronautics
• astronavigation
• astronomer
• astronomic
• astronomical aberration