total luminous flux meaning in English

光源在各方向的总光线发射
总光通量

Verification scheme of measuring instruments for total luminous flux
总光通量计量器具检定系统
Verification regulation of working standard lamps for total luminous flux
总光通量工作基准灯检定规程
Verification regulation of incandescent standard lamp for total luminous flux
总光通量标准白炽灯检定规程
Verification regulation of standard fluorescent lamps for total luminous flux
总光通量标准荧光灯试行检定规程
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