dielectric coated mirror
镀介质反射镜

• Saturn's ring
• saucer shape
• Savart plate
• savart platesSavart
• Savart polariscope
• saw
• sawtooth generator
• sawtooth sweep
• sawtooth wave
• scab
• scalar
• scalar diffraction theory
• scalar matrix
• scalar nature
• scalar product
• scalar wave
• scalar wave equation
• scalar wave theory
• scale
• scaled-down
• scale division
• scale eyepiece
• scale factor
• scale ga(u)ge
• scale height