Rashid Din拉昔丁
din trophenylhydrazine二硝基苯肼
Din N黄金地球;德国试验标准
DIN Valves螺旋式气瓶开关
LOCK DIN八件式
Din Dong癫当
DIN Rails导轨
Din theaService事接口
N(名词) a formerly used logarithmic expression of the speed of a photographic film, plate, etc, given as –10log10E, where E is the exposure of a point 0.1 density units above the fog level; high-speed films have high numbers 感光度 → compare ISO rating