centesimal circle graduation
百分分度

• photoradiogram
• photoransmitter
• photoreaction
• photoreader
• photoreading
• photoreceiver
• photoreceptor
• photorecombination laser
• photoreconnaissance
• photoreconversion
• photorecorder
• photorectifier
• photoreduce
• photoreduction
• photo reflector
• photorefraction
• photorefractive
• photorefractive effect
• photorelay
• photorepeater
• photoresist
• photoresistance
• photoresist optics exposure
• photoresistor
• photoresistor-cell relay