本文认为，不同经济条件下有不同的最优积累率。
This paper suggests that there are different optimal accumulation rate in different economic conditions.
利用最优化原理研究了该系统的积累率和人口自然增长率。
The optimal control theory is used to study the accumulation rate and the population growth rate.
利用最优化原理研究了该系统的积累率和人口自然增长率。
The optimal control theory is used to study the accumulation rate and the population growth rate.
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