self-cooled transformer

例句：

1. 1.The self-cooled transformer is an important component of the power system.
   自冷变压器是电力系统的重要部件。
2. 2. The self-cooled transformer is designed to reduce the temperature rise in the power system.
   自冷变压器设计用来降低电力系统中的温度上升。
3. 3.The self-cooled transformer is used in high-voltage power transmission systems to improve efficiency and reliability.
   自冷变压器用于高压电力传输系统中，以提高效率和可靠性。