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| switch regulating | |||
| open and shut control | |||
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开关调节 : 26 phrases in 8 subjects |
| Automobiles | 10 |
| Aviation | 2 |
| Construction | 1 |
| Metallurgy | 2 |
| Nautical | 1 |
| Oil / petroleum | 1 |
| Space | 1 |
| Technology | 8 |
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