Direct Limit and Pushout in the Category of Semimodules;

In this category, solving the homo- " # A geneous linear equation set ( A, B )X = 0(or X = 0) have close contact with seeking the pushout for morphisms B " # .

Througn designing three axial slots in internal threaded portion and optimizing nib structure,a design was made on the injection mould with a two-step ejecting mechanism with non-rotating.

The decision of stepped type of parting line,design of vertical slot gate runner system,pre-replacement ejecting mechanism and insertion structure were described.

Through analyzing the technologies of clamp ferrule,the work principles of shaping mould structure and ejecting mechanism were introduced.

The structure design and working process of an injection mould for the component were stated; especially were the ejecting mechanism of the mould and the drive system for automatically sequential installation of inserts.

The contents should weed through the old to bring forth the new while paying attention to the relationship of traditional technology and modern technology.

It analyses 4 probing means and courses of the NeoHuizhou style architecture since 1980s, and gives priority to its aesthetic characteristics, its connotation which weed through the old to bring forth the new, and its enlightenment to the practice of new local style.