loss meter

例句：

1. 1. The company uses a loss meter to monitor the efficiency of its production processes.
   该公司使用一个损失量计来监控其生产过程的效率。
2. 2.The loss meter indicates that there is a significant amount of waste in the process.
   损失量计显示，过程中存在大量废物。
3. 3.The loss meter was used to calculate the total cost of the project, including labor and materials.
   损失量计被用来计算项目的总成本，包括劳动力和材料费用。