... multiple frequency 倍频；多重频率 multiple factor 多基因，复因子；多基因 multiple level 多能级 ...
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采用复因子试验设计中的析因试验设计，为二因子有重复的试验设计。
Experiment design of factor analysis, a multiple factor design, was adopted, in which two factors were repeated in experiments.
采用复变函数及摄动方法，最后以幂级数形式给出应力强度因子的计算公式。
Stress intensity factors at the craek tips are computed by complex variable functions and perturbation method and formulas are given in power series forms.
采用复变-变分法求解受钉传载荷含边缘裂纹各向异性与各向同性板的应力强度因子。
Description is given for a complex variable-variational method to investigate the stress intensity factors in anisotropic and isotropic plates with edge cracks subject to pin loads.
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