The main goal of the Elaboration phase is to baseline the architecture of the system to provide a stable basis for the bulk of the design and implementation effort in the Construction phase.

精化阶段的主要目标是对系统架构进行基线化，为在构建阶段中的大量设计和实现工作提供一个稳定的基础。

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Elaboration: the goal of the Elaboration phase is to baseline the architecture of the system to provide a stable basis for the bulk of the design and implementation effort in the Construction phase.

细化：细化阶段的目标是为系统体系架构设定基础，用来为构建阶段的大多数设计和实现工作提供稳定的基础。

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What makes Construction phase iterations special, then, is the marked sense of progress implicit in each analyze-design-code-test cycle that is brought to completion every few weeks.

在几个星期内，我们就会完成一个分析——设计——编码——测试的周期，这个给我们一种明显进展的感觉。这就是构建阶段的迭代的独特之处。

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The Navy has put together a tightly-wound schedule for developing that successor that requires design work to commence in the fiscal year beginning this October, with a seven-year construction phase for the lead ship starting in 2019.

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