dioptric power
(1)折光度，屈光度
(2)折光本领，屈光本领

• apparent colour
• Apparent Contrast
• Apparent Depth
• apparent displacement
• apparent distance
• Apparent Field
• photocartograph
• photocartography
• photo catalysis
• photocatalysis
• photocatalyst
• photocathode
• photocathode-phosphor image intensif8ier
• photocell
• photocell colorimeter
• photocell eye
• photocell pickoff
• photocenter
• photo-charting
• photochemical
• photochemical action
• photochemical adaptation of eye
• photochemical blooming
• photo chemical curing systems
• photochemical effect