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基于非可见性数和关键点的概念，提出了一种新的隐藏曲线的消除算法，并应用该算法来确定三轴数控铣削的可加工性区域，从而可避免相应的刀具干涉，为数控加工中的干涉检查及消除提供一种新的途径。
Based on the concept of non-visibility number and key points, a new algorithm of hidden curve elimination is proposed and applied to determine the machinability area of three-axis CNC milling, which can avoid the corresponding tool interference. In the interference check and eliminate provide a new way.