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transfer switch: 31 phrases in 13 subjects |
Automobiles | 3 |
Aviation | 5 |
Chemistry | 1 |
Electronics | 3 |
Geophysics | 1 |
Information technology | 1 |
Navigation | 1 |
Nuclear and fusion power | 2 |
Rail transport | 2 |
Securities | 1 |
Space | 3 |
Technology | 6 |
Wind Energy | 2 |