American Heritage defines a utility as a commodity component that is provided for general consumption and designed for a variety of practical USES.

美国传统词典定义公用事业是作为日用组件为大众消费和设计提供不同的实际使用。

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The scene database is important component of flight simulators, and building the scene database universal platform has remarkable function and practical significance.

地景数据库是飞行模拟器的重要组成部分，构建地景数据库通用平台具有显著的作用和现实意义。

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The article presents the software reuse technology based on component by using the mature component design standard, proposes a more practical implementing model.

阐述了基于构件的软件复用技术，利用其成熟的构件设计标准提出了一种比较实用的实现模型。

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"Some programs have a huge leadership component, others spend more time in practical case studies, " says Michael Desiderio, executive director of the Executive MBA Council in Orange, Calif.

WSJ: An Executive M.B.A. With a Global Flavor