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本文提出了用定义虚拟孔、交互定义覆盖件外轮廓、图形截切与重组三种方法来实现彼此覆盖图形的消隐。
In this paper, three methods of defining the virtual hole, interacting with the outer contour of the cover, and cutting and reorganizing the graphics are proposed to realize the blanking of the overlay graphics.