如前所述，JCA和EMD提供了可靠的机制来访问EIS的数据和函数，同时还提供了来自于J2EE平台更多的服务质量功能。
As discussed above, JCA and EMD provide a solid mechanism to access the data and functions of EIS, while providing more Quality of Service capabilities from the J2EE platform.
通过对高速公路服务质量的概念、内涵及特征分析，提出了高速公路服务质量的目标函数。
Through the analysis on concept, connotation and characteristic, this paper brought forward the objective function of expressway service quality.
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