The function, drive mode and design project of the central database, especially the realization of workflow system is introduced.
分析了中心数据库在工作流管理系统中的作用以及驱动机制，并介绍了数据库的设计方案。
The project introduced the state of the simulation technology, analyzed the limitation of the present simulation technology in the electric bicycle drive system research.
论文介绍了仿实技巧的现状，剖析了现无的仿实技巧反在电动自行车驱动体解机能研讨外的局限性。
We have designed the DC drive system of double closed loops according to the methods of the project design, which based on the DC drive regulation principle.
本文是基于双闭环直流驱动原理及双闭环直流驱动系统工程设计方法，设计出应用于直流电动机的双闭环直流驱动系统。
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