Abstract : based on the introduction of electric control system of modern port machinery and the idea of four layers of hybrid port management and control system , this paper presents the main functions and contents of remote diagnostic technology for the control system of modern port machinery 文摘:以港口大型设备为主要研究对象，在介绍了现代港口设备控制系统的主要原理和提出基于网络和信息技术的港口现代化管理与控制的四层递阶控制结构模式概念的基础上，介绍了港口设备远程诊断技术的总体技术方案和特点。
To enterprise , on the one hand , drfdes can harmonize the enterprise equipment , set up the network of equipment ' s state inspecting and the fault diagnosis system , keep equipment work naturally , improve efficiency and economize the maintenance fee , on the other hand , drfdes can help set up the global service system of selling , can offer timely , effective and almighty service to consumers 对于企业，一方面要保证企业设备的协调机制与合作机制，对大型设备需要建立广域范围的设备状态监测网络以及故障诊断专家智能系统，来保证所有设备的正常运行，提高生产效率，同时节约维修费用；另一方面，为企业在全球范围内提供高质量的产品和及时售后服务提供了一个解决的途径，使得设备用户获得及时、有效、全面、智能的诊断维护服务成为了可能。
Drived by high voltage synchrobyne , this product is one of the series power packages of the largest power in industry in the world . and the basic unit of large pooaratus , which could replace the expensice imported products and play an important role in the high voltage and high current ac transmission vf power source 该产品成功的使用在大型高压同步机的驱动上,是属于投入工业运行的功率最大的串联功率组件,是大型设备的基础件,他不仅替代价格高的进口产品,而且为高压大电流交流传动的奕频电源打下基础
Abstract : in view of , in the modification and maintenance of petro - chemical unit , the limited working space and inability of available hoisting equipment to meet hoisting installation requirements , a simple and reliable hoisting tool used is introduced taking account of the construction conditions 文摘:在石油化工装置大型设备的技术改造和检修作业中，针对现场施工空间小、现有吊装设备无法满足施工要求的情况，介绍了因地制宜设置简单可靠的吊装机具，完成吊装作业的方法?门架旋转作业法的成功应用。
