The thesis based on random fractal theory, utilizing fractional Brownian motion model, using R/S analysis technique and wavelet transform method to estimate Hurst exponent which dep.
基于随机分形理论，采用分数布朗运动模型，应用R/S分析技术和基于小波变换的谱参数估计方法计算地震道信号的赫斯特指数。
The maximum velocity V in blasting vibration is a random variable, it has no definite function relation to Q and R in general meaning. So V only can be controlled in a confidence interval.
阐述了爆破地震波的质点最大振速V是一个随机变量，它与Q、R没有一般意义上确定的函数关系，因此振动只能控制在某一区间。
So, in actual, the pricing problem of R&D project character with not only random but also fuzzy, and random and fuzzy cannot be replaced by each other.
因此，从实际情况来看，研发项目的不确定性包含了随机性和模糊性，两者不能相互代替。
The speciality base resin of propylene random copolymer (PP - R) for tubing was successfully developed in the commercial plant through the study on the imported PP - R product.
通过对进口无规共聚聚丙烯（PP-R）产品的分析研究，在引进装置上成功生产出PP-R管材专用料的基础树脂；
Random forest package in R shows error during prediction() if there are new factor levels present in test data. Is there any way to avoid this error?
随机森林包R显示在预测误差（）如果有新因素水平出现在测试数据。有什么方法可以避免这个错误?。
Styrene-maleic anhydride random copolymer was prepared through solution polymerization and was characterized by IR, DSC and TGA. And the application of R-SMA in leather retanning was discussed.
采用溶液聚合法制备了苯乙烯- 马来酸酐无规共聚物，并用IR、DSC和TGA对产物进行了表征，论述了苯乙烯-马来酸酐无规共聚物在皮革复鞣中的应用。
The invention relates to a while random copolymerization polypropylene (PP-R) light resistant pipe which comprises a white (PP-R) water pipe.
本发明涉及一种白色无规共聚聚丙烯阻光管。
The invention relates to a while random copolymerization polypropylene (PP-R) light resistant pipe which comprises a white (PP-R) water pipe.
本发明涉及一种白色无规共聚聚丙烯阻光管。
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