The stress - strain curve of concrete materials, broadly in line with the theoretical variation of the construction of high-Pier Top load control has a good reference value.

该应力-应变曲线基本符合混凝土材料的理论变化规律，对高墩墩顶施工荷载的控制具有很好的参考价值。

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We propose a new image processing method based on PDE with the reference of curve and level-set function involution theories.

根据曲线演化和水平集函数演化的思想，提出了一种基于偏微分方程的图像处理方法。

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Determine the concentration of acetate in the test solution using the calibration curve generated by the average of the readings obtained with the reference solutions.

由对照溶液的平均读数得到校正曲线，用该校正曲线测定供试液中醋酸盐的浓度。

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