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| 波段转换选择开关 | |||
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change-switch : 38 phrases in 12 subjects |
| Air defense | 1 |
| Automobiles | 6 |
| Aviation | 2 |
| Compressors | 4 |
| Electric machinery | 4 |
| Electronics | 4 |
| Geophysics | 1 |
| Metallurgy | 3 |
| Oil / petroleum | 1 |
| Technology | 9 |
| Telecommunications | 1 |
| Wind Energy | 2 |
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