摘要
分析了在定积分的应用中如何确定所求量的微元。讨论了求旋转体体积和侧面积时，把分别后的小立体分别视为圆柱体和圆台的原因。
It is analysed that how a solid is divided into some microelements when definite integral is applied to calculating its volume. The reasons are also given why the subdivided solids are respectively taken as cylinder and circular frustum when the volume or the side area of a body of revolution is calculated.
出处
《株洲师范高等专科学校学报》
2002年第2期20-23,共4页
Journal of Zhuzhou Teachers College
