constant voltage cell

例句：

1. 1. The constant voltage cellis used to power a small electronic device.
   恒压电池用于为小型电子设备供电。
2. 2. Theconstant voltage cell was designed to provide stablepower for long periods of time.
   恒压电池被设计用来提供长时间稳定的电源。
3. 3. Theconstant voltage cell is essential for maintaining thestability of the circuit.
   恒压电池对于保持电路的稳定性至关重要。