transformer board

例句：

1. 1.The engineer used the transformer board to convert the electrical signal into a different frequency.
   工程师使用变压器板将电信号转换为不同的频率。
2. 2.The transformer board was designed to improve the efficiency of the power system.
   变压器板被设计来提高电力系统的效率。
3. 3.The transformer board is essential for maintaining the stability of the electrical grid.
   变压器板对于维持电网的稳定性至关重要。