On the basis of field geology survey, the probability distribution function of joint aperture is fitted and the availability of the fitting is verified.

在现场地质调查的基础上，对节理开度的概率分布函数进行了拟合，并进行了假设分布的有效性检验。

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However, the digital random vibration control systems currently based on power spectrum fitting can only generate random vibration exciting signals with Gaussian probability distribution.

然而，目前基于功率谱均衡的数字式随机振动控制系统只能产生高斯分布的随机振动激励信号。

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By comparing their fitting compatibility and the cumulative failure probability curve, the advantage of the Weibull-distribution based regression is concluded.

通过拟合优度和累积失效率曲线形态的对比，说明了威布尔分布用于曲轴失效数据分析的优越性。

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