The process of obtaining a specific representation of a curve by a mathematical expression or equation.

通过数学表达式或方程获得一曲线的特定表示法的过程。

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The problem of attaining the tangent equation of a certain point on a quadratic curve is basically solved in plane analytical geometry.

平面解析几何对“求过二次曲线外的点所引曲线切线的方程”的问题，未给出一般的方法和公式。

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The stress-strain curve of rubber mortar is tested, and then fitted into a curve equation.

测试了废橡胶粉水泥砂浆的应力—应变曲线，并将曲线拟合成方程。

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The shape of the curve which describes this decline is governed by a well-known equation called the Faddy-Gosden model.

ECONOMIST: Predicting the menopause