Using method of qualitative theory of ordinary differential equation, studies economic harvesting model with variable price and cost for a single population.
利用常微分方程定性理论的方法讨论了价格成本变化的单种群经济捕获模型。
In addition, this research has analyzed the influence of population statistic variable on each factor.
此外，本研究分析了人口统计变量对于各因素的影响。
The structure and sequence of the genome is immensely variable in the human population.
的基因组的结构和顺序在人类人口具有极大的变量。
应用推荐