To capture previous values, some sites add three or four fields when they build the dimension table.

为捕获从前的值，在构建维度表时，一些站点需要增加3个或4个字段。

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So, more and more scholars attach importance to optical three-dimension shape measurement and it is being one of front line studying fields and researching direction of information optics.

因此，光学三维面形测量技术受到广大学者的重视，正成为信息光学的前沿研究领域和方向之一。

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The three-dimension reconstruction technique of free-form surfaces has been widely used in many fields such as manufacturing industry, art design, medical treatment and plastic surgery.

自由曲面的三维重构技术在制造工业、艺术设计及医疗整形等领域具有广泛的应用价值。

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