以下为句子列表：
英文: 74 explores time-dependent quantum mechanics and spectroscopy. Topics covered include: perturbation theory, two-level systems, light-matter interactions, relaxation in quantum systems, correlation functions and linear response theory, and nonlinear spectr
中文: 74探索与时间相关的量子力学与光谱学，课题包含：微扰理论、双能级系统、光与物质之作用、量子系统的松弛过程、相关函数与线性响应理论，以及非线性光谱学。
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英文: Abstract: Based on the fundamental theory of computation of the cable-prestressed steel trusses established in paper［1］,the iterative perturbation formulas which inversively determine the stiffenesses of elements of steel trusses and cables with the restr
中文: 文摘:基于文［1］所建立的拉索式予应力钢桁架基本计算理论，根据矩阵摄动原理进一步给出了以竖向结点位移为约束反演确定任意布索张拉予应力钢桁架单元刚度和拉索刚度的摄动迭代公式。
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英文: A Finite Element Method for a Singular Perturbation Prblem of Second-order Elliptic Partial Differential Equation
中文: 二阶椭圆型偏微分方程奇导摄动问题的有限元解法
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英文: A method is presented here to direct two or many chaotic systems towards low-period motions by using adaptive pulse perturbation method. Many chaotic systems can be controlled to different periodic orbits simultaneously.
中文: 用自适应脉冲微扰方法控制的系统的某个系统变量作为驱动,设计了一种自适应控制器方法对两个或多个响应混沌系统进行脉冲微扰,引导这些系统从混沌运动到低周期运动,实现同时控制多个混沌系统到不同的周期态.
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英文: About 'the Super Bound of the Limit Circles of the Perturbation System =y+εP_n(y)x = -x + εQ_n(x)y
中文: 关于扰动系统=y+εP_n(y)x,=-x+εQ_n(x)y的极限环的上界(英文)
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