Name for various mechanical devices for altering the direction of something, making a connection or… In an electric telegraph, telephone…
| 单词 | θ214303 |
| 释义 | society > occupation and work > equipment > machine > parts of machines > control(s) > [noun] > switch (10) switch1865 Name for various mechanical devices for altering the direction of something, making a connection or… In an electric telegraph, telephone… Subcategories:— types of (8) — base for (1) |
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