Basically, the purpose of this indexer is to return a point corresponding to a given row and column on the drawing surface. Follow these steps.

本质上，该索引器的目的是返回一个与绘制面上已知的行和列相对应的点。

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When sending to each product must make proper and packaging, packaging to indicate this product in the drawing number, name, and the corresponding number.

送货时必须对每一款产品做出妥善的包装，并在包装上标明该产品的图号，名称，及相应的数量。

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Therefore, doing research about the method of electrical circuit drawing recognition and intelligent design and developing a corresponding CAD system is a significant and valuable work.

因此，研究电气原理图识别与智能化设计方法并开发相应的电气CAD系统是一项非常有意义的工作。

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