photoxiden.光氧化物photon.照片v.拍照photo-detection voltage光检测电压photoelectric colorimetry光电色度学photocathode illumination光阴极面照度photometric standard star测光标准星photoelectric power meter光电型功率计photosensitizing emulsion感光乳剂photoelectric interaction光电交互作用photoelectric light curve光电光变曲线photos-electric scanner光电扫描器photosensitive resistance光敏电阻