The design decisions provide a conceptual basis for system development, support, and maintenance. [McGovern] 7.

设计决定为系统开发，支持和维护提供概念上的基础。

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For example, almost all legacy computer systems need some form of design investigation, if for no other reason than to train new developers in the maintenance and extension of the system.

例如，如果是仅仅出于就系统的维护和扩展培训新开发人员，则几乎所有的遗留计算机系统都需要某种形式的设计研究。

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Wetland design is a natural system that can be designed for high performance and low maintenance.

湿地设计项目是设计一个具有高利用性和低维护要求的自然系统。

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The State of California, Department of Transportation (Caltrans) is responsible for the design, construction, maintenance, and operation of the California State Highway System, as well as that portion of the Interstate Highway System within the state's boundaries.

ENGADGET: IBM shows off Smarter Traveler traffic prediction tool