Pockets are produced by giving the Z height of the top and bottom of the pocket, and selecting a boundary curve.

根据选择边界曲线来定义顶部底部Z轴高度值提供了一种袋状加工方式。

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The offsetting technology of 2D-compound curve is a basic problem in CAD/CAM, and has been widely studied in tool path generation for pocket machining.

二维组合曲线的等距方法是CAD/CAM领域中的一个重要课题，并在型腔环切加工刀具轨迹自动生成技术中得到广泛研究。

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This takes money out of one pocket, pours it into another and ends up plain and simple flattening the yield curve, which is bad for the economy, not good.

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