a high-grade oil with a low sludge content used to cool and insulate transformers and other electrical equipment.
| 单词 | θ77860 |
| 释义 | the world > matter > physics > electromagnetic radiation > electricity > electrical engineering > transformer > [noun] > cooling agent (1) transformer oil1904 a high-grade oil with a low sludge content used to cool and insulate transformers and other electrical equipment. |
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