变上限积分是积分学的一个重要理论，其运算结果仍以函数的形式体现。
Integral that upper limit of integral is variable is a important theory, results of operation is function forma after all.
变上限积分是积分学的一个重要理论，其运算结果仍以函数的形式体现。研究这类函数，得出几个颇有理论意义的定理。
Integral that upper limit of integral is variable is a important theory, results of operation is function forma after all. Research this kind of function, get a few theorem.
积分上限函数加强了微分和积分之间的联系，是定积分基本公式的理论基础。
The integral upper limit function strengthened between the differential and the integral relation, is the definite integral fundamental formula rationale.
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