Design of automatic control system follow pioneer and credibility and usableness , also it keep to save investment . quality of equipment achieve in advance level of the present age Rh真空处理的自动控制系统设计遵循了先进、可靠、实用的原则，节约投资的原则；设备选型和装备水平达到了当前先进的水平。
2.
So , the best way to realize scientific management , the best economic efficiency and social efficiency is to monitor and analyze the circuit breaker ’ s status really in time , make sure safe operation , increase usableness and realize condition based maintenance 能够及时准确地了解高压断路器的运行状态,确保断路器的可靠运行,提高设备的可用率,实现高压断路器的状态维修,是实现电力系统的科学化管理、最佳经济效益和社会效益的最好途径。
3.
In this paper we present in detail the process of midship section design and drawn procedure , coding shipping section plane cad application program through using microsoft visual c + + 6 . 0 , objectarx2000 programming languages and using grade optimistic method of optimization method . software design adopt windows attribute dialog box and common dialog box alternate designed means , people - computer interaction interface novelty , usableness 本文对船舶结构设计中的中横剖面设计和绘制程序进行了研究，利用autocad软件的二次开发功能，通过采用microsoftvisualc + + 6 . 0 、 objectarx2000编程语言和使用最优化方法中的分级优化方法，编制出了船舶剖面cad应用程序。
4.
The author builds the units reliability increasing model based on the eigenvalue with equivalent practicable degree and usableness coefficient of the 200mw units of jingyuan power plant . the actual data indicated that the model can analyze the rising rule of units reliability may be analyzed by this model , and the data are transmited to all the management departments it provides basis for right management decision 本文根据靖远电厂200mw机组运行等效可用度和可用系数为特征量建立了机组的可靠性增长模型，并经过了实际数据的验证，表明采用该模型可对机组的可靠性增长规律进行分析，并可将这些数据及时传送到厂里各级生产管理部门，为正确的管理决策提供确切的依据。
