term second-order的意思|示意

It is because that the coupling term due to polarization and the ignored term due to the weakly guiding approximation are as small as the second order, and they are just the same.

最后认为这是由于偏振耦合项是二阶小量，而弱导近似忽略了与之相等的二阶小量耦合项。

The second, Louisa, was taller and more elegant in figure; with a very pretty face, of that order the French term mino is chiffone: both sisters were fair as lilies.

二女儿路易莎的个子要高些，身材也更加优美，脸长得很不错，属于法国人所说的“minoischiffonne”那一类，姐妹俩都像百合花那么白净。

The purpose of this paper is to study the existence of periodic solutions of a class of second order Hamiltonian Systems ith damping term.

主要研究了一类带有阻尼项的二阶哈密顿系统的周期解的存在性。

We propose a new method of finding the nonlinear correction term as well as the second order nonlinear susceptibility of the materials by using a modified MZI system.

我们改进了MZI系统，并用其获得了各向同性非线性材料的非线性修正项和二阶非线性磁化率。

In this paper we give a way by which find general term formula of second order linear recurrence sequence by means of matrix theory.

文章借助矩阵理论解决了一般二阶线性递推数列通项公式的求法问题。

The factor of the mixed partial derivative term controls the grid orthogonality. The other two factors of second order partial derivative terms control the grid spacing.

结果表明 ：方程中混合偏导数项系数具有控制网格正交性的作用；