a switch or circuit-breaker in which the contacts are immersed in oil.
| 单词 | θ77582 |
| 释义 | the world > matter > physics > electromagnetic radiation > electricity > circuit > circuit-breaker > [noun] > switch (2) oil switch1904 a switch or circuit-breaker in which the contacts are immersed in oil. trip switch1924 (see quot. 1924). |
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