ortating mirror framing camera
旋[转]镜分幅照相机

• Jean bernard leon foucault
• Jellet-Cornu prism
• Jellet prism
• Jena glass
• jet
• jet boundary
• jet-damping
• jet roifice
• jet stream
• jet stream laser
• jewel
• jewelary stone
• jewel bearing
• jewelry
• jib
• jibg
• Jig
• Jig allowance
• jig-bored hole
• jig-borer microscope
• jigger
• jig point
• jigs, tools, and Machines
• Jig transit
• jitter