在试验基础上作参数修改和模态重新分析，使固有频率的总相关系数达90%。
Due to the modification of the parameters and the reanalysis based on the results of test the general correlation coefficient for the natural frequencies is over 90%.
各处理苜蓿不同深度处根重占总根重的百分率随土壤深度的增加呈对数关系，相关系数均超过了0.9623。
There existed logarithm relations between the layer weight of roots and soil depth with the correlation factor of over 0.9623. The weight of roots decreased rapidly with the increase of soil depth.
UMT含量随着总镉摄入量、血镉和尿镉水平增加而增加，UMT与总镉摄入量、血镉和尿镉的相关系数分别为0.251、0.322和0.437（P<0.05）；
Significant correlations were found between the UMT and total uptake of cadmium, blood cadmium and urinary cadmium, the correlation coefficients were 0.251, 0.322 and 0.437 (P<0.05), respectively.
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