Based on rough set and mathematic statistics theories, the state evaluation model for mine ventilation system is proposed.
提出了一种基于粗糙集和数理统计理论的矿井通风系统状态评估模型。
This paper applies the method of documents, investigating method interviewing method, mathematic statistics method, logical analysis method etc.
本文运用的研究方法主要有：文献法、问卷调查法、访谈调查法、数理统计法、逻辑分析法。
The factors which influence the magnetic property of 1J116 anti-corrosion soft magnetic alloy were studied through the magnetization theory and the mathematic statistics.
分别从磁化理论和数理统计两个方面分析了影响耐蚀软磁合金1J116磁性能的因素。
This paper analysis the reason why the middle error of unit weight in first class traverse of Nan Tong City (B area) is bigger with the principle of mathematic statistics;
本文运用数理统计学原理分析了南通市一级导线网（B区）单位权中误差偏大的原因；
With picture data analysis and contrast, literature study, experiment proof, mathematic statistics and other methods, this paper conducted an analysis to tennis forehand and backhand chop skills.
采用图像（片）资料分析对比、文献资料研究、实验验证、数理统计等方法，对网球正、反手切削球技术进行分析。
By means of the analysis of data and documents, survey-making and mathematic Statistics, a study has been made on sports consumption in families of the city of Taiyuan.
采用文献资料分析法，问卷调查和数理统计方法，对太原市居民的家庭体育消费状况进行了研究。
By means of the analysis of data and documents, survey-making and mathematic Statistics, a study has been made on sports consumption in families of the city of Taiyuan.
采用文献资料分析法，问卷调查和数理统计方法，对太原市居民的家庭体育消费状况进行了研究。
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