transformer silicon steel sheet

例句：

1. 1. The transformer is responsible for converting alternating current into direct current.
   变压器负责将交流电转换为直流电。
2. 2. The transformer was designed to improve the efficiency of the power grid.
   变压器的设计目的是为了提高电网的效率。
3. 3. The transformer's design has been optimized to reduce noise and improve reliability.
   变压器的设计已经被优化，以减少噪音并提高可靠性。