refinement monoid造句

例句与造句

1. Of course, every measurable monoid is a conical refinement monoid.
2. Whether any conical refinement monoid with at most & alefsym; 1 ( or even & alefsym; 0 ) elements can be represented as " V ( R ) " for " R " von Neumann regular is an open problem.
3. It's difficult to find refinement monoid in a sentence. 用refinement monoid造句挺难的