The uncertainty evaluation and data processing methods for the CCPR key comparisons of luminous intensity and luminous flux unit are introduced.

分析了大功率白色发光二极管的发光强度（即光强）、光通量和色坐标与测量位置的关系，提出了解决的方法。

youdao

Now, if you wanted the unit normal vector to compute flux, then you would just scale this guy down to unit length, OK?

如果想用单位法向量来计算通量，还得先把它标准化到单位长度？

youdao

So, this flux measures how much smoke is passing through s per unit time.

这个流量度量了，单位时间内通过s的烟雾的多少。

youdao