中文摘要：

覆盖阵列是应用于软硬件交互测试的一类重要组合结构.本文给出了强度大于等于4的覆盖阵列的一个新构造,提供了降低覆盖阵列数的新思路.

英文摘要：

Covering array is a type of combinatorial structure which plays an important role in the software and hardware testing. In this paper, a new construction for covering arrays of strength no less than 4 is developed and the covering array numbers are expected to improve by this construction.