它提供一个窗口构件，当然还提供给予Part功能访问权的操作，以及描述这些操作在用户界面中的布局的XML文件。

It provides a widget, of course, but also the actions that give access to the Part's functionality, as well as an XML file that describes the layout of those actions in the user interface.

youdao

它提供一个窗口构件，当然还提供给予Part功能访问权的操作，以及描述这些操作在用户界面中的布局的XML文件。

It provides a widget, of course, but also the actions that give access to the Part's functionality, as well as an XML file that describes the layout of those actions in the user interface.

youdao