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| 选择开关 | |||
| English thesaurus | |||
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| selective switch (ssn) | |||
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selection switch : 16 phrases in 8 subjects |
| Automobiles | 1 |
| Aviation | 2 |
| Business | 1 |
| Electronics | 4 |
| Geophysics | 1 |
| Space | 4 |
| Technology | 1 |
| Telecommunications | 2 |
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