求得了具体结构参数情况下的第一阶屈曲临界流速，计算了结构参数变化对临界流速的影响。
The first_order critical fluid speed with concrete structural parameters is calculated, and the influence on critical fluid speed is studied when the structural parameters are changed.
数值结果表明：在隐式一阶多项式近似下，对合适的反应性输入能够取得足够精确的结果。
The numerical results show that for reasonable reactivity inputs, a sufficient accuracy can be achieved in first order polynomial approach presented here.
摘要通过对积分算子谱的估计，作者给出了一阶线性微分差分方程在边值条件下解的存在唯一性定理。
In this paper, by estimates of spectral of an integral operator, the authors give a theorem on the existence of solutions for first order differential difference equations with boundary condition.
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