convex-plane cylindrical lens
平凸柱形透镜

• artificial
• artificial aging
• artificial earth satellite
• Artificial eye
• artificial illumination
• Artificial Intelligence
• artificial light
• Artificial Pupil
• artificial quartz crystal
• artificial radioactivity
• artificial source
• Artificial Star
• artillery mil
• artoregistration
• artwork
• arylidene dye laser
• asa photographic standard
• asbestos
• asbestus
• aspect
• aspect angle
• Aspect of Image
• aspect photocell
• Aspect Ratio
• asphalt