first order approximation

under first order approximation, the effect of the light leakage and the rotating error of the linear polarizer on the index measurement by polarization method is analyzed and some formulae are derived.

在一阶近似下，本文着重分析了偏振法折射率测量中线偏振器漏光误差和转角误差的影响，并导出了有关公式。

first order approximation of partial exponential stability of nonlinear time-varying systems

非线性时变系统部分指数稳定的一次近似

The first order approximation of the primary resonance of a harmonically forced symmetrical piecewise linear system is derived by using KBM approach.

由KBM法推出的分段线性系统主共振的一次近似解，导出了分叉方程。

in order to describe the dynamic behavior correctly, it is necessary to establish the first order approximation model.

必须建立计及动力刚度项的刚柔耦合一次近似动力学模型，才能正确描述系统的动力学行为。

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。

the first order approximation of the taylor series takes the first two terms in the series.

泰勒展开的一阶近似保留级数的前两项。

In some problems in quantum transition, time-dependent perturbation theory gives the first order approximation of transition probability amplitude.

在有关量子跃迁的问题中，含时微扰理论给出了跃迁概率振幅的一级近似解。