central monitoring system

例句：

1. 1.The city is located at the center of the country.
   这个城市位于国家的中心。
2. 2.The project is central to the company's strategy.
   这个项目是公司战略的中心。
3. 3. The meeting was held in the center of the room.
   会议在房间的中心举行。