movable core transformator

例句：

1. 1. The new transformer is designed to improve the efficiency of our power grid.
   新变压器的设计旨在提高我们电网的效率。
2. 2. The transformer was installed in the substation to ensure stable power supply.
   变压器被安装在变电站以确保稳定的电力供应。
3. 3. The transformer's design features a high-quality copper core, which helps to reduce noise and improveperformance.
   变压器的设计特点包括高质量的铜芯，这有助于降低噪音并提高性能。