photoxic光损伤photon.照片v.拍照photochemical oxidant光化学氧化剂Photo Image Processor光图像处理机photo document sensor光敏文件感受器photostriction effect光致应变效应photoelectric devices光电器件photoelectric surface(有)光电(性能的)面photosynthetic enzyme光合成酶photopalpebral reflex光睑反射photosynthetic tissue光合组织photoelectrical coder光电编码器