GB/T 39388- 2020/CIE S 023/E:2013.Characterization of the performance of illuminance meters and lumi...
GB国家标准
GB国家标准
GB国家标准
GB/T 39388-2020 照度计和亮度计的性能表征方法
GB/T 39388-2020.Characterization of the performance of illuminance meters and luminance meters. 1范围 ...