In order to approach the optimum design of changeover portion structural shapes for submarine s different diametral pressure cabins,a new structural type,named the double arc transition form,is introduced based on the analysis of stress concentration,by using the engineering calculation method and finite element mthod.

Under the current domestic financial separation system,financial holding company, bank holding company and industrial holding company are three existing transitional modes of financial conglomerate.

This article proposes a transitional mode in dealing with the pronunciation of those people for the test.

Based on a comparative analysis of existing operation mode, transition mode and regulation mode adopted by different financial systems, the paper points out that during its banking scope deregulation, China should select Pure Financial Holding Company as operation mode, "Artificial Gradualism" as transition mode, and synthesis Regulation as regulation mode.