invertibility

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

本文研究在一有单位元环倍幂等元换位子与倍对合元换位子逆性问题。

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

热逆凝胶是一种高分子聚合物，具用热逆性。