METHODS Chromatogram can be treated as vector of hyperspace, and the similarity between them can be counted according to vectorial angle formula.
方法将色谱指纹图谱看作多维空间内的向量，利用向量夹角余弦的基本公式计算两个指纹图谱间的相似度；
The application of magnetic transmission technology in the agitating device is discussed, Some design methods and calculation formula are obtained by analysis and experiments.
对磁传动技术在搅拌装置上的应用做了较为全面的论述，并通过对具体结构的分析和试验，获得并验证了具体的设计方法和计算公式。
On this basis, the necessity of testing prior hypothesis by means of experimental data is proved, and some practical test methods and formula are presented.
在此基础上，提出了根据实验数据对先验分布进行假设检验的必要性，给出了一些公式和若干可行的检验方法。
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