retinal stereophotograph
视网膜立体照相术

• gain invertion
• gain margin
• gain of light
• gain per pass
• gain spiking
• gain stage
• gain staturation
• gain-switching amplifier
• gain-switching system
• gal
• galaaxy
• galactic irradiance
• galactic noise
• galaxy
• Galilean
• Galilean binocular
• Galilean eyepiece
• galilean refracting telescopes
• Galilean telescope
• galilent telescope
• galley camera
• gallium
• gallium aluminum arsenide
• gallium antimonite
• gallium aresenide injection laser