ultrafilter

/uhl-truh-fil-ter/US // ˌʌl trəˈfɪl tər //UK // (ˌʌltrəˈfɪltə) //

超滤器,超级过滤器,超滤,超滤镜

Definitions

n.名词 noun

1
- : Physical Chemistry. a filter for purifying sols, having a membrane with pores sufficiently small to prevent the passage of the suspended particles.
- : Mathematics. a filter in a topological space, having the property that no other filter exists in the space having among its subsets all the subsets in the given filter.

v.有主动词 verb