... second-order condition二阶条件 second-order difference二次差分 second-order effect二阶效应 ...
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通过对原串行程序进行分析与测试，确定了以曲率计算、第一次差分计算和第二次差分计算等为并行化的重点。
Through the analysis and test of original serial program system, curvature computing and first difference, second difference etc. are defined as key objects.
为克服其不足，建立和研究了二次单调插值特征差分方法。
The quadratic monotone interpolation characteristic difference method is proposed to overcome these defects.
基于通用有限元软件和地基阻抗力时域差分形式，完成了考虑土–结构动力相互作用影响的结构时程分析程序二次开发。
By use of general FEM software and the time-domain difference of ground resistance, the structure history analysis programs with consideration of soil-structure dynamic interaction was developed.
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