integral distribution curve

基本解释

Coordinates of a normal probability paper are calculated with a approximate formula of normal distribution integral curve and drawn on screen.
采用正态分布积分曲线的近似公式计算概率格纸的坐标，并在屏幕绘图。
The granularity distribution and average diameter of particles of red phosphorus smoke were tested and the integral curve of typical sample were given.
测试了红磷烟幕的粒度分布及平均直径，给出了典型样品的累积曲线。
Taking the integral of the normal distribution gives us the total investment and is the "S"-curve that is familiar to many when discussing technology innovation over time.
这时，算出正态分布的总和，我们便得到了总投资额，也画出了“S型曲线”，即许多人在研究一段时间内的技术创新时所熟知的一种曲线。