精确的分类 meaning in Chinese

scientific classification

Spread on a metal plate . he meticulously catalogued the symmetrical , geometrically perfect structures and elegant sound mandalas that resulted from directing hundreds of different frequency and rhythmic combinations , from single tones and intervals to complex musical harmonies , through the plate .
他称这个新的研究领域为cymatics ，并且将不同频率，节奏的单音，间歇音，复杂合声做了几百种不同的组合，对物质粉末由于这些振动而形成的完美，对称的结构和精美的曼陀罗高度复杂的对称几何图案进行了精确的分类。
Many experiences show that lots of practical classification cannot give the precise result that one object belong to one class , while only give the probability of one object belong to one class . so we can apply the fuzzy knowledge process technology to the field of text categorization , and we can get more precise classification results by using appropriate fuzzy
并且实际经验告诉我们，很多实际分类问题往往不好精确地确定某个对象属于某个类，而只能给出某个对象属于某个类的可能性有多大，因此将模糊知识处理的理论技术应用到文本分类的领域中，利用适当的模糊反而可以达到更精确的分类结果。