请教Pro/Tookit中几个关于菜单的概念问题

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本人接触Pro/tookit才几天，手头上也没有中文的关于pro/e二次开发的工具书，只好自己参详《 Pro/TOOLKIT User's Guide 》，自己英文水准一般，看起来比较费劲，有些概念看了两天还是很模糊，下面我把原文和我的理解写在下面，请师兄师姐们帮我矫正。
（1）Menu bar--The top level horizontal bar in the Pro/ENGINEER UI, containing the main menus like File, Edit, and Applications.——这个问题不大，Menu bar指得是界面上的那个菜单栏
（2）Menu bar menu--A menu, such as the File menu, or a sub-menu, such as the Export menu under the File menu.——个人认为，Menu bar menu指得是菜单栏中的菜单，以及菜单下面的子菜单
（3）Push button--A named item in a menu bar menu that is used to launch a set of instructions. An example is the Exit button in the File menu.
Check button--An item in a menu bar menu that may be toggled on and off. An example is the Model Tree toggle in the View menu.——这个Check button-指得是菜单上的开关按钮
Radio group--An item in a menu bar menu that may be set to one and only one of any number of options. An example is the group of windows listed in the bottom of the Window menu which allow you to switch between different windows..——这个指得是菜单上的单选按钮
   另外我还有如下的认识：
     菜单包括子菜单和按钮，其中按钮分为命令按钮（Push button）、单选按钮（Check button）和开关按钮（Check button）
     

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TONY88

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