微元分析 meaning in English

infinitesimal analysis

In this paper we analyze the revolver of the curve revolving around the straight line , discuss the calculations of the area and volume of the revolver , get two integral formulas of the calculations of the area and volume , and illustrate the application of the formulas with examples
摘要针对数学分析中平面上曲线绕平面上任意直线旋转一周而形成的旋转体进行分析研究，运用微元分析法，对旋转体体积及旋转体与过该直线的截平面相交所得面积进行讨论，得到相应的积分公式，并举例说明公式的应用。