为进一步讨论该类型一维系统中不同类型激子的产生、输运、衰减等动态过程，关联强度U的选择提供参考。
The result offered useful reference for the choice of U, in formation, transport and annihilate of different excitons in trans-polyacetylene.
自由电子的运动学由自由狄拉克方程——一个四维系统的偏微微分方程描述。
The kinematics of free electrons is described by the free Dirac equation, a four-dimensional system of partial differential equations.
在传统二维系统中，一般用二维符号来表述。
In traditional 2D system, they are usually showed by 2D symbols.
有许多生产者的低端二维系统，其中包括了一些免费的开放源码程序。
There are many producers of the lower-end 2D systems, including a number of free and open source programs.
对高维系统的测量得到的通常只是一维时间序列。
When we measure the high dimension system, we usually acquire the one-dimension time series of this system.
针对非线性离散动态大系统最优控制问题，在二维系统理论的基础上，对一种基于模型求解实际问题最优解的递阶算法作了分析。
Based on two -dimensional system theory, an analysis of a hierarchical optimal control algorithm for discrete nonlinear large - scale system is made.
结果表明：电子-声子耦合达到一定强度时声学极化子有效质量发生突变而使极化子自陷，声学极化子在二维系统中比三维条件下更容易自陷。
The results indicate: the effective mass of an acoustical polaron undergoes a sudden increasing when thee-p coupling constant achieves the critical value and then the self-trapping occurs.
该解决方案提出的协同指挥功能，可实现物理上分布各处的各职能工作人员，对同一事故地点的三维场景从同一角度去查看，并可以用三维系统自带的平台进行对话。
The joint direct function promoted in this solution can deploy manpower, and you can observe an accident spot from an angle and have a conversation through the 3D platform.
该解决方案提出的协同指挥功能，可实现物理上分布各处的各职能工作人员，对同一事故地点的三维场景从同一角度去查看，并可以用三维系统自带的平台进行对话。
The joint direct function promoted in this solution can deploy manpower, and you can observe an accident spot from an angle and have a conversation through the 3D platform.
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