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根据微分学的原理,设计了一种测定果实表面积的方法——区分圆台法,经实测和统计证明,这种方法既简单又准确,适用于各种果形的苹果、梨。用单果重和果实体积建立的估计果实表面积的三个经验公式,通过相关系数的显著性测验证明可行;进一步地协方差分析,找到了两个一元线性经验公式在各地点间的共性,使统计预测显示了广阔的前景。
According to the principle of differential calculus, a method of measuring the surface area of fruit is designed, which is the method of differentiating the round table method. The measured and statistical results show that this method is simple and accurate and can be applied to apples and pears of various fruit shapes. The three empirical formulas for estimating the surface area of fruit obtained from fruit weight and fruit volume were proved to be feasible by the significance test of the correlation coefficient. Further analysis of covariance found two common linear empirical formulas in different places, The forecast shows a bright future.