In these critical fields, the system generally has large scale and complicated logic function, and requires very high reliability and safety of the software.
在这些领域中，软件系统规模庞大，逻辑复杂，其可靠性和安全性往往有很高的要求。
The system integrates the logic control, instrument control and drive control, and has advantager of reasonable process, high reliability of hardware and powerful software function.
该系统将逻辑控制、仪表控制和传动控制一体化，工艺合理，硬件可靠性高，软件功能强大。
Traditional J2EE development pattern have some problems, include a high degree coupling of display and business logic, maintenance trouble in later, software is difficult to reuse.
传统基于J2EE的开发模式存在着显示与业务逻辑高度耦合、后期维护困难、软件难以复用等问题。
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