a high-grade oil with a low sludge content used to cool and insulate transformers and other electrical equipment.
| 单词 | θ216843 |
| 释义 | society > occupation and work > materials > derived or manufactured material > extracted or refined oil > [noun] > distilled or refined mineral oils > oils for other uses (3) transformer oil1904 a high-grade oil with a low sludge content used to cool and insulate transformers and other electrical equipment. road oil1906 a heavy oil containing asphalt, used esp. in laying dust and as a binding and waterproofing material in road construction. mould oil1939 an oil applied to the inner surface of formwork to prevent concrete adhering to it. |
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