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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。
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Natural gamma ray spectral log is a new type of well logging method.
自然伽马能谱测井是一种新的测井方法。
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Natural gamma ray spectral log is a new type of well logging method.
自然伽马能谱测井是一种新的测井方法。
youdao