Some feature in phase diagram drawing is analyzes and modified quadratic fitting method is used to fit the curves. The method is proved to be effective.
本文分析了水盐体系相图中二次曲线拟合的特点，并提出使用修改后的二次拟合方法对相图中曲线进行拟合的方法，在绘制相图中得到了较好的效果。
The paper, through analyzing the forming of the amplitude spectrum of the echo, proposed a new method using quadratic curve fitting for it.
本文针对这种情况，对连续波雷达回波频谱幅度产生原因进行分析，提出了二次曲线拟合频谱幅度来估计加速度的方法。
Based on the fitting results and its inner law, the calculating efficiency in optimizing the reactor is increased via applying the sequential quadratic programming (SQP) method.
基于其内部规律，结合拟合结果，应用序列二次规划法(SQP)对电抗器进行优化，提高了优化计算效率。
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