two-stub transformer

例句：

1. 1. The two-stub transformer is essential for the operation of our power system.
   双芯变压器是我们电力系统运行所必需的。
2. 2. The double-core transformer has a higher efficiency than the single-core transformer.
   双芯变压器的效率高于单芯变压器。
3. 3. The dual-core transformer is used to convert AC to DC in various industrial applications.
   双芯变压器用于各种工业应用中将交流电转换为直流电。