second order polynomial meaning in Chinese

平方多项式

Second order polynomial regression mathematical model treatment of flow capacity - lift head property curve of centrifugal pump
扬程性能曲线的二阶多项式回归数学模型处理
In this paper , we first reconstruct a second order polynomial surface to approximate the original point model in the local area of each point , which is then restricted within a so - called - confidence region , producing a - surfel
摘要在每个点附近重建一个二次多项式函数曲面逼近原点模型，并根据逼近误差将每个重建曲面限制在称为置信邻域的范围内，从而形成一个面元。