brilliant finder
反转式检像镜，反转式瞄准装置

• grazing-incidence mounting
• grease
• grease-spot photometer
• green
• green block
• green disk
• green filter
• green-house effect
• green laser
• green mercury light
• greenough microscope
• green radiation
• green region
• Green's function
• Green's theorem
• Green-Twyman interferometer
• Greenwich meridian
• Greenwich sidereal time
• Greenwich time
• green-yellow light
• Gregorian mirror
• Gregorian telescope
• grenz rays
• grey
• grey body