型腔模具又叫凹模，是成型塑件外表面的工作零件，按其结构可分为整体式和组合式两类。是生产制造业的模具术语，构成产品空间的零件称为成型零件（即模具整体），成型产品外表面的零件称为型腔模具。
Virtual equipment is the map of real equipment in virtual manufacturing environment. The application of feature concept to equipment can help constructing the course feature model, which facing mold&die virtual manufacturing lifecycle.
将特征概念应用到NC设备建模过程中，可以建立面向型腔模具虚拟制造全过程的过程特征模型，给系统的应用模块提供完整一致的制造资源信息，该NC设备过程特征模型包括数据层，协议层、应用层和用户层。
参考来源 - 模具虚拟制造研究及虚拟NC设备特征库的建立Virtual equipment is the map of real equipment in virtual manufacturing environment. The application of feature concept to equipment can help constructing the course feature model, which facing mold&die virtual manufacturing lifecycle.
将特征概念应用到NC设备建模过程中，可以建立面向型腔模具虚拟制造全过程的过程特征模型，给系统的应用模块提供完整一致的制造资源信息，该NC设备过程特征模型包括数据层，协议层、应用层和用户层。
参考来源 - 模具虚拟制造研究及虚拟NC设备特征库的建立·2,447,543篇论文数据，部分数据来源于NoteExpress
持续几十年的挑战之一是难于找到多型腔模具来生产一模一样的部件。
One that has persisted for years is the difficulty of getting multicavity tools to produce identical parts.
持续几十年的挑战之一是难于找到多型腔模具来生产一模一样的部件。
One that has persisted for years (decades, actually) is the difficulty of getting multicavity tools to produce identical parts.
斜导柱是型腔模具中典型的结构零件，对其实现自动化设计很有必要。
Since the Angle pin is a typical structural part of the mold, it is necessary to design automatically.
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