However, you can use the accelerator table to define key combinations for commands that don't have a user-interfaceobject associated with them.
不过，您可以使用快速键对应表，来为不具相关使用介面物件的命令定义组合键。
2
The main layers of the application are a database, a persistence framework, a database access object, and userinterface (UI) controller and view layers.
应用程序的主要层是数据库、持久性框架、数据库访问对象和用户界面(UI)控制器及视图层。
3
A widget is a View object that serves as an interface for interaction with the user.