吞吐量降低是一个复杂的问题，它与DB2和SQL性能优化、WebSphere Application Server性能诊断、程序设计和代码编写都有关系。

Throughput degradation is a complex problem that relates to DB2 and SQL performance tuning, and WebSphere Application Server performance diagnosis, program design, and coding.

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利用面向对象程序设计(OOP)技术实现该模型，使工程机械故障诊断专家系统的诊断效率和适应性得到极大的提高。

The model is realized by the OOP technology, causing the prodigious improvement of the efficiency and the adaptability of the construction machinery's fault-diagnosis expert system.

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这里重点研究了遗传程序设计方法在故障诊断领域中的应用，以推动和实现智能诊断。

This paper mainly studies the application of Genetic Programming in fault diagnosis field in order to drive and realize intelligent diagnosis.

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