It presents the approach to product-oriented CAPP, the structure, process and function of CAPP system based on product tree.

提出了面向产品的CAPP方法，阐述了基于产品结构树的CAPP系统体系结构，分析了基于产品结构树的CAPP系统的过程与功能。

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The task of automatic collecting is finding valid collecting data source card in product tree, interpreting and executing collecting definition.

自动汇总的任务则是在指定的产品结构树中找到有效的汇总数据源卡片，解释和执行汇总定义。

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It is an important part as how to build the product tree reflecting the assembling relation of the components in a product, using the data having generated by CAD.

其中如何利用CAD设计数据建立反映产品组件间装配关系的产品树是其关键环节。

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But it could find a future claim to fame in birch syrup, a nontraditional but increasingly popular product pulled from New Hampshire's state tree.

WSJ: Birch syrup explored as add-on to maple industry

But if iPod's sales ultimately disappoint, it's because Apple's industry-leading marketing expertise makes every product launch like Christmas morning, but the presents under the tree never quite measure up to the ones in your imagination.

FORBES: Apple Unwraps IPod

It may simply be that each tree, like each person, is an individual, and has a personality that's a product of both nature and nurture.

NPR: Excerpt: 'A Splintered History Of Wood'