管外介质温度作为控制函数出现在传热方程的第三边界条件中。
The temperature of the medium out of the pipe, as a control function, occurs in the third boundary condition of heat transfer equation.
研究了一类捕食者-食饵模型的平衡态系统在第三边界条件下正解的存在性。
The existence of positive solutions of the steady-state system is studied for a kind of predator-prey model under the third boundary conditions.
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