曝光时间刻度
/ɛkspˈəʊʒətˈaɪm ˈskeɪl/
n
English: exposure-time scale · 曝光时间刻度
English · exposure-time scaleEspañol · escala de duración de la exposiciónFrançais · échelle des temps d’exposition
释义：Graduated scale that shows the length of time a film should be exposed to light, which is determined by the shutter speed.