This article analyzes the present status of publishing accessorial teaching materials and teaching reference books on higher vocational education in our country from ordering books aspect,and advances a series of suggestions on these problems.

Working temperature of valve accessory material;

Optimization of auxiliary steel member arrangement for transmission towers;

Strengthening auxiliary materials management, and improving service quality;

In view of the many problems existing in the research on auxiliary materials for news among the news - writing circles, this article makes an investigation of the points at issue, wb emphasis on an analysis of the nature, types and functions, etc.