第四，构建了技术突变条件下的最优技术增长率模型。

Fourth, the theoretical model of optimum technological growth rate under discrete change is erected.

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研究了带线性等式约束下增长曲线模型中条件可预测变量的最优预测。

The problem of conditional optimal prediction for conditional linear predictable variable in the general growth curve model is investigated.

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第三，构建了技术渐变条件下的最优技术增长率模型。

Third, in the case of gradual technological growth, the mathematical model of the optimum technological growth rate is built.

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