1) Energy spectrum evolution
能谱演变
2) evolutionary spectrum
演变谱
1.
Based on Priestley s evolutionary spectrum theory,an evolutionary process modulated by decline composite exponential function,is investigated as one kind of non_stationary excitation commonly encountered in engineering,and the analytical solution of the response properties is gained through proper simplification.
基于Priestley的演变谱密度理论 ,对于工程中常用到的衰减指数函数调制的演变过程激励 ,通过对结构响应的合理简化 ,得到响应特征的解析形式。
2.
Based on Priestleys evolutionary spectrum theory, the evolutionary spectra and the time varian.
采用有限元离散大型输电塔，并应用 Ｐｒｉｅｓｔｌｅｙ 的演变谱理论分析了大型输电塔在非平稳随机地震激励作用下的响应演变谱和时变协方差，考虑了不同场地土对响应演变谱和时变协方差的影响情况，得出了一些有益的结论。
4) properties evolution
性能演变
1.
Structure and properties evolution of Cu-2.5Fe-0.03P alloy under different treatment conditions
不同处理状态下Cu-2.5Fe-0.03P合金的组织与性能演变
5) evolutionary power spectra
演变功率谱
1.
Analysis of evolutionary power spectra density function of ground motion induced by blasting seismic;
爆破地震地面运动的演变功率谱密度函数分析
2.
According to the theory of evolutionary spectra presented by Priestly,the evolutionary power spectral density is estimated,based on wavelet transform.
按照Priestly提出的演变随机过程理论,基于小波变换的方法推导出演变功率谱密度函数。
6) response evolutionary spectrum
响应演变谱
补充资料：VGESCALABMKII电子能谱仪
VGESCALABMKII电子能谱仪
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说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条