百叶窗式面板组， 利用百叶窗式面板组可增大窗口的可利用面积，而且把常用工具放在窗口中比放在菜单中使用更方便-Louvered panel group, the use of louvered window panel group can increase the available area, but the commonly used tools in the window rather than in the menu easier to use