cumulative demand meter

例句：

1. 1. Thecompany uses a cumulative demandmeter to track inventory levels.
   该公司使用累积需求计量器来跟踪库存水平。
2. 2. Theengineer designed the cumulative demandmeter to accurately measure the flow rate.
   工程师设计了累积需求计量器，以准确测量流量。
3. 3. The cumulative demandmeter was used to monitor the productionprocess and ensure quality control.
   累积需求计量器被用来监控生产过程并确保质量控制。