tree list造句

For the first issue , this paper uses a tree list and colorful leaves to show the state of the collaborate member and his access purview in whiteboard , moderator can manage all the other person ' s groupware access purview in centralized - control way , users can change their access purview during the collaboration conference is going on through a " raise one ' s hand to speak " mechanism
对于前一个问题，本文用树形列表和树叶颜色直观地表示白板中各协作成员的在线状态和访问权限，由会议主持人集中管理各协作组件的访问权限，并为用户引入“举手发言”机制在协作过程中来灵活的申请改变访问权限。
It's difficult to find tree list in a sentence. 用tree list造句挺难的