• 比率自然对数称为对数减量

    The natural logarithm of this ratio is called the logarithmic decrement.

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  • 当前元数的自然对数替换此四元数。

    Replaces the current quaternion with its natural logarithm.

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  • 两种表面相对厚度自然对数分布。

    The relative thickness of the frost layer on both surfaces obey the natural logarithm law.

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  • 函数作用是:返回数值自然对数

    The log() function returns the natural logarithm (base E) of a number.

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  • 果园土壤果园土壤浓度都服从自然对数分布

    Old orchard soil and new orchard soil the whole phosphorus concentration obey natural logarithm normal distribution.

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  • e为底对数自然对数出现复合计算以及大量科学数学应用程序中。

    Logs base e (natural logarithms) appear in the calculation of compound interest, and numerous scientific and mathematical applications.

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  • 通过对NG82-1型冲击电流计计算公式讨论,找到自然对数计算较为方便。

    Through the discussion of computing formula for measuring high resistance by Mdoel NG82-1impact corrent galvanometer, it is discoverde that it is much casier to do calculation by natural logarithm.

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  • 灰色预测而言,如果原始数据长,对原始数据进行平滑处理所得预测模型精度较高原始数据进行取自然对数的处理所得模型预测精度较低

    For gray model, the longer of original datum, the higher precision during smoothing processing of datum and the lower precision during natural logarithm processing of datum, vice versa;

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  • 灰色预测而言,如果原始数据长,对原始数据进行平滑处理所得预测模型精度较高原始数据进行取自然对数的处理所得模型预测精度较低

    For gray model, the longer of original datum, the higher precision during smoothing processing of datum and the lower precision during natural logarithm processing of datum, vice versa;

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