According to the service state of waterless taphole clay in 1 750 m3 BF of Jinan Steel,three standards were established for judging the application effect.

This paper describes the technological specifications and performances of the solid nonpolarized electrode,its application effects and its comparison with the same sort of devices produced both in China and abroad.

This paper expounded the concept, basic principle and application effect of harmonic filter reactor and analyzed its electromagnetic calculation and the characteristics of its structural desig

Analysis is given to the setting philosophy and application result.

Preparation and using effect of permanent sample slides of mixed helminths eggs

In this paper, the author summrizes the development of cold drawn pipe rolling mill technique in Chi-na in recent decade, especially, introduces the structure, rigid calculation, characteristics and using effect of newtype prestress hydraulic cold drawn pipe mill with high rigid self-designed and self-developed by Hefei Iron & SteelCo.

The paper has made an debailed study ang analysis in the making technology of 120t converter bracket circle from selection of plan,making technology,using effect etc.

On the Results of Experimental Teaching Material Used in the Primary School s Mathematics Course Published by People s Education Publishing House;

In production of 20 kt/a sulfuric acid series at our plant,due to acid fouling,increasing fume resistance in Ⅲa heat exchanger tube,the measure of cleaning Ⅲa heat exchanger with cleaner devoloped by LanZhou chemisty and Machine Reaserch Institute and its process and result were studied.