以下为句子列表：
英文: Abstract: In this paper,using the improved L-P method and the interpolation perturbation method,the authors seek to solve a class of the damped strongly nonlinear free oscillation problems.Its first order approximate solution is obtained.
中文: 文摘:本文用插值摄动法及改进的L-P法相结合的方法求解了一类有阻尼的强非线性自由振动问题，得到了一级近似解。
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英文: Abstract: The nonlinear finite element dynamic simulation model for an oscillation mechanism with 4-eccentric axis for continuous casting machine is established by means of the theory of kineto-elastodynamics.
中文: 文摘:根据运动弹性动力学的理论方法，建立了连铸机四偏心式振动机构非线性有限元动力学仿真模型。
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英文: Abstract: The oscillation criterion for the solutions of a class of neutral functional differential equations with positive and negative coefficients be investigated, some new sufficient conditions for all solutions of the equations to be oscillatory are
中文: 文摘:研究一类具有正负系数的中立型泛函微分方程的振动性,得到了其解振动的新的充分条件.
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英文: Abstract: The system of the pyrotechnic oscillation burning ha ve been studied with the experimental research and the reaction mechanism analys is methods .The phenomenon of the oscillation burning has been observed and reco rded, and the relationship of
中文: 文摘:对具有振荡燃烧现象的体系进行了实验研究和反应机理分析；对振荡燃烧现象进行了观察和记录，得到了各反应物与振荡燃烧现象的关系。
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英文: After all, for thousands of years humans have tracked time by the position of the sun, not by the oscillation of the atom.
中文: 毕竟数千年来，人类的时间都是追随着太阳的脚步而行，而不是依据原子的震荡。
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