在一定条件下，对振荡积分值做贡献的主要来自被积函数在临界点附近的小区间的积分值。
Under some conditions, the major contribution to the value of oscillatory integral comes from neighborhoods of those critical points of the integrand.
本文给出一些充分条件，使振荡函数的含参量积分保持振荡性。
In this paler we give some sufficient conditions, such that integrals of oscillatory functions with a parameter remaining oscillatory.
数值计算结果证明，该算法可以快速计算通常意义下任意函数的定积分，并能计算振荡函数的积分。
Numerical experimental results prove that the algorithm can compute integral for any functions in the usual sense, and compute oscillation function integral.
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