hierarchy system

• 体系,分级的多计算机控制系统,分层控制系统

hierarchy system的用法和样例：

例句

1. I think this new system has a lot going for it.
   我认为这一新体系有许多有利之处。
2. Nothing threatens the permanence of the system.
   该体系的永恒性不受任何事物的影响。
3. That rating system is already installed.
   分级系统已经安装。
4. You must choose a rating system for Content Advisor to work.
   必须选择分级系统才能使内容审查程序正常工作。