sum accumulator

例句：

1. 1. The computer's sum accumulator is showing a high level of activity.
   计算机的总和累加器显示了高级别的活动。
2. 2.The engineer used his sum accumulator to calculate the total cost of the project.
   工程师使用他的总和累加器来计算项目的总成本。
3. 3. The sum accumulator was used to store and process data from various sensors.
   总和累加器被用来存储和处理来自各种传感器的数据。