The calculating formulae of weighted optimumcurve regression model parameter given in this paper possesses high speed of parameter correcting, high precision of fitting and obvious effect.
本文给出的带权优化曲线回归模型参数计算公式，修正参数速度快，拟合精度高，效果显著。
2
Unclosed magnetic curve is be build by simulation data of different specification drill pipe, which be used a rule to select optimum magnetization region.
应用不同规格钻杆的仿真数据，建立不同规格钻杆的不同开路磁化曲线，并以此作为最佳磁化强度的选择依据。
3
The result shows that a optimum strip(SPCC steel) heating curve and a furnace temperature curve be gained.