numerical integral method的用法和样例：
例句
- The accuracy and cost time of calculating the Sommerfeld integrals by the present method are compared with those obtained by numerical integration.
根据涡流无损检测中的几组典型数据，比较了用该文方法和直接数值积分法计算并矢格林函数的精度和求解速度。 - The construction of boundary type cubature is a problem that has been noticed for a very long time in numerical integration.
边界型求积公式是数值积分法研究方向早就被注意的问题。
