详细解释:【计】 全集
英语解释：
名词 universal set:
(mathematics) the set that contains all the elements or objects involved in the problem under consideration例句：
For a universal set, the set of all elements in the set that are not in a specified subset.补集对任意一个集合，这个集合的所有元素不共存在于它的任一子集合