测光标准 meaning in Chinese
luminous standard
Examples
- Photometrle standard lamp for general lighting service
普通测光标准灯泡 - Photometric measurements on incandescent lamps used for photometric standards
测光标准器用白炽灯的测光方法 - Total luminous flux measurements on discharge lamps used for photometric standards
测光标准器用放电灯总光通量的测量 - Photometric standard star
测光标准星