The text analyzed the reasons of the low quality and efficiency,and took scientific measures according to the concrete case in the process of production,set about improving it from technological equipment and operational methods,and thus not only improved the quality but also raised the efficiency substantially.

Study on the operating method of preparative experiment of acetidin;

The present paper discusses the dry cake quenching process,material flow of the coke,gas circulation and certain problems easy to be neglected in the boiler system in connection with the practical operating process for dry coke quenching,analyzes the harmfulness of the abnormal operating method and puts forward the improvement measures.

On the basis of improving cutting-tool angle and operating method,the machining efficiency is raised,the difficulties in processing inside whorl are also solved.

Operation Method and Nursing Experience of Hearing Screening of Newborn Babies;

The text introduces the structure,function and operation method of BATAC jigger,which can help everyone know how the BATAC jigger works.

A coordination operation method for three group parameters of regenerative heating furnace was summarized.

In accordance with these reasons,some corresponding countermeasures are put forward and then a malfunction judgment and operation method to the instability of the rotational speed is formed so as to enhance the malfunction treatment ability.

The definition,content and way of the operation method for a boiler to change combining using pulverized coal with gas to fully using blast furnace gas were presented.