RDA can be used to develop data models in either a top-down or bottom up manner, allowing analysis of existing databases and development of data models by reverse engineering of existing data assets.

RDA可用于采取自下而上或自上而下的方式开发数据模型，允许分析已有数据库和通过对已有数据资产的反向工程开发数据模型。

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The ship flooded from the bottom up, and when the rising water shorted out the electrical system, the massive boat shifted into reverse.

当时渔船底部进水，不断上升的水位使电路系统短路，巨大的船体开始转向相反的方向。

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Because I've explored the object in a bottom-up fashion so far in this article, I now look at the reverse from the user perspective (see Figure 7).

到目前为止，我都是以一种自下而上的方式探索对象，现在我们采用自上而下方式，从用户透视图中考察对象(见图7)。

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With FNSR I do see a bit of a reverse Head and Shoulders bottom here.

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The daily chart of Apple Inc. ( AAPL) appears to be forming a reverse head-and-shoulders bottom formation.

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