片语
low level of illumination低照度
pixel level illumination像素级光照
retinal illumination level视网膜照度水平
level of illumination照明匀度
intensity of illumination照明度
low illumination level photography[摄]
low illumination level低照度
recommended level of illumination推荐的照度标準
Illumination level in classroom教室照度水平
lighting level照明度,照度级