invertibility

This paper is a study on the invertibility of the commutator of scalar-idempotent elements and scalar-involutory elements of a unitary ring.

本文研究在一个有单元环中两个倍幂等元换与两个倍对合元换题。

The reversible gel is a kind of high molecular polymer.It has peculiar thermal invertibility and peculiar thermal sensitivity.

热凝胶是一种高分聚合物，具用独特热。