A box sizer can be vertical or horizontal.

一个方框sizer可以是垂直的也可以是水平的。

Before you can add the button to the frame, however, you create a sizer.

但是在可以向框架添加按钮之前，需要先创建sizer。

After creating the sizer, you attach it to the frame with the SetSizer method.

创建sizer之后，使用SetSizer方法将它附加到了框架。

The laser particle sizer is highly automated, so its operation is very simple.

激光粒度仪自动化程度高，操作简单。

The ContentPanes are separated by a sizer control that allows users to resize the ContentPanes.

ContentPane又由sizer控件加以分离，该控件让用户能够缩放ContentPane。