power semiconductor device

例句：

1. 1. The power semiconductor device is essential for the operation of modern electronic devices.
   功率半导体器件是现代电子设备运行不可或缺的。
2. 2.The development of power semiconductor devices has greatly improved energy efficiency.
   功率半导体器件的发展极大地提高了能源效率。
3. 3. The power semiconductor device is used in various applications such as power generation and transportation.
   功率半导体器件被广泛应用于发电和运输等领域。