tally circuit

例句：

1. 1. The engineer designed a tally circuit to count the number of people entering the building.
   工程师设计了一个计数器电路来统计进入大楼的人数。
2. 2. The tally circuit was used to check the accuracy of the data entry system.
   计数器电路被用来检查数据输入系统的准确性。
3. 3. The tally circuit was installed in the cash register to improve efficiency.
   在收银机中安装了计数器电路以提高效率。