lagging circuit

例句：

1. 1. The circuit board is the heart of the electronic device.
   电路板是电子设备的核心。
2. 2. The lagging signal caused a delay in the data transmission.
   滞后信号导致数据传输延迟。
3. 3. The engineer carefully checked the lagging circuit to ensure it was functioning properly.
   工程师仔细检查了滞后电路，确保其正常工作。