The first order approximation of the partial exponential stability of nonlinear time-varying systems is investigated by linearization approach of nonlinear systems.
通过非线性系统的线性化方法，讨论了一类非线性时变微分系统的解关于部分变量指数稳定的一次近似。
In this paper, the first order approximation theory of dynamic logging is obtained by using the geometrical factor theory in downhole condition and RC network theory.
本文用井条件下的几何因子理论和RC网络的单位脉冲响应给出了动态测井的一阶正演理论。
So I hastily wrote up a paper giving the first order of approximation and showing that to that accuracy, at any rate, we had agreement between the theory and observation.
所以我匆忙地写了篇论文，给出一阶近似解并指出至少在这个精确度下，理论和实验结构都相符合。
Dr Worm acknowledges that the figures are "only a first order approximation" but says that if anything they are conservative.
Worm博士承认这些数据只是一阶近似，但他认为如果没有什么区别的话，这些数据已经是保守的了。
It is pointed out that Peters'equation is just the formula with first order approximation.
指出该公式只是一阶近似意义下的公式，并导出二阶近似、三阶近似意义下的公式。
Under the first-order approximation of Taylor expansion, the analytic expression for the defect mode frequency is derived, from which the coupling factor is deduced.
利用泰勒展式的一级近似，得到了缺陷模频率的解析表达式，进而得到紧束缚理论中的耦合因子。
In the case of first-order approximation, an effective method for obtaining t...
在一次近似中，得到了一个有效的求解板的基频近似值的方法。
In the case of first-order approximation, an effective method for obtaining t...
在一次近似中，得到了一个有效的求解板的基频近似值的方法。
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