threephase oil immersed transformer

例句：

1. 1.This three-phase oil-immersed transformer is used for high voltage power transmission.
   这种三相油浸式变压器用于高压电力传输。
2. 2. The three-phase oil-immersed transformer is a crucial component in the power grid.
   三相油浸式变压器是电网中至关重要的组成部分。
3. 3.The three-phase oil-immersed transformer was designed to improve efficiency and reduce maintenance costs.
   三相油浸式变压器的设计旨在提高效率并减少维护成本。