principal branch of natural logarithm 自然对数的枝
base of natural logarithm 自然封数底 ; 自然对数的底
modulus of natural logarithm [数] 自然对数模
table of natural logarithm 自然对数表
natural number of a logarithm 对数的真数
main value of natural logarithm 自然对数的主值
The natural logarithm of this ratio is called the logarithmic decrement.
此比率自然对数称为对数的减量。
The log() function returns the natural logarithm (base E) of a number.
函数的作用是：返回一个数值的自然对数。
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.
通过对NG82-1型冲击电流计测高阻计算公式的讨论，找到用自然对数计算较为方便。
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