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One of the second order of angels. 二级天使天使中的第二级
And the second order effects should also be mild. 第二波的影响亦应该比较温和。
A two dimensional TVD scheme with second order accuracy in space and time is used to simulate the horizontal relative motion flowfield between wedges. 采用时间和空间二阶精度的TVD格式数值模拟了二维楔的水平相对非定常运动过程与定常组合体流场。
The new scheme realizes the tracking control of flight pitch angle by applying second order ADRC to compensate model disturbances and uncertainty. 利用二阶自抗扰控制器补偿系统模型扰动和外扰，实现了纵向运动俯仰角变量的跟踪控制。
Key words Partial integro-differential equation fractional calculus nvolution quadrature finite difference scheme second order fully discrete scheme. 本刊中包含“偏积分微分方程;分数次计算;卷积积分;差分格式;二阶全离散.
In this paper,a modified Dennis difference scheme for the advection-diffu- sion equation is given,which has the second order accuracy and the self adjust- ability. 本文改进了关于对流-扩散方程的Dennis 格式,不仅保持了二阶精度,且具有自调性。
Numerical solution of second order differential equations. 二阶微分方程的数值解。
Kim B. Bruce gave a system of axioms lor second order logic L(Q). Bruce于1978年提出二阶逻辑L(Q)的概念和公理系统。
Kim B.Bruce gave a system of axioms for second order logic L(Q). Kim B.;Bruce于1978年提出了三价逻辑L(Q)的逻辑公理系统。
The general solution of a kind second order equation is given. 摘要给出一类二阶变系数线性微分方程的通解。
This paper analyzes the problem of how to get the lowest reserving cost through derivative, and offers the best order scheme. 摘要本文分析了如何使库存费用最低的问题，并提出了最佳方案。
It is: (1)designed according to attenuate vib-ration system of second order. 其特点是按具有衰减振荡的二阶系统进行设计;
By combining these pictographs, a second order of ideas is expressed. 把这些象形字缀合在一起表示了另一层次的观念。
Existence of positive solutions of BVP for second order IDE with fixed moments. 二阶脉冲微分方程边值问题。
Title： Boundary value problem for a class of second order nonlinear O.D.E. 关键词：非线性常微分方程;边值问题;解;存在性
An Analytical Study on Cherenkov Cascading Second Order Nonlinearity[J]. 引用该论文钟开生;胡鸿璋;张海斌;梁麦林.
Analysis of numerical results by two-step Lax scheme, second order TVD scheme, third order ENO scheme and fifth order WENO scheme combined with second and third order TVD-Runge-Kutta method is given. 本文给出了二步Lax格式，二阶TVD格式，三阶ENO格式，五阶WENO格式的数值结果，在时间差分上采用的都是二阶TVD-Runge-Kutta方法。
We demonstrate a second order polarization mode dispersion compensation scheme using two polarization controllers, two optical circulators and a variable different group delays (DGD) component. 摘要:在光纤通讯传输系统中，当传输速率和距离不断增加时，二阶偏极化模态色散对传输品质的影响不得不被考虑。
The difficulty is in which way the non-circulating stock can acceptably enter the second order market. 全流通的难点是非流通股份以何种方式进入市场,才能被二级市场所接受。
Through using ENO schemes to calculate some model problems and comparing the results with common TVD scheme, it shows the advantages of high order schemes in calculating complex flow problems. 通过一些典型算例的应用和同常用TVD类型格式的比较，说明了在计算中采用高阶格式分辨复杂流动结构的优越性。