The following aspects are involved in the thesis : 1 the architectures of distributed pdm system . the types of pdm system architectures mapping to those types of development are analyzed 其中主要包括： 1分布式pdm系统体系结构。研究异地协同产品开发的工作类型，并研究支持不同类型协同工作的pdm系统的体系结构。
I feel that my qualifications match your job description . i have a proven track record in resolving problems , multitasking , and dealing with customers , as you can see from my resume 我觉得我的条件正适合你们的工作类型。从我的简历中你可以看到我有一份证实我在解决问题，进行多重任务工作，和处理顾客问题方面能力的证明资料。
The directing thought on maintenance management based on rcm is analyzed . the femeca and fault tree analyzing methods on the purpose of optimal maintenance and the mathematical model of period optimization for preventive maintenance of critical equipment are researched . the technical method for determining the type of maintenance work is put forward 分析了基于rcm的维修管理指导思想，研究了以优化维修为目的的fmeca和故障树分析法以及关键设备预防性维修周期优化的数学模型，提出了确定维修工作类型的技术方法。
