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| 脱扣电流 | |||
| out current: 20 phrases in 9 subjects |
| Aviation | 1 |
| Earth sciences | 1 |
| Economy | 1 |
| Electric machinery | 4 |
| Electronics | 3 |
| Metallurgy | 3 |
| Oil / petroleum | 1 |
| Space | 1 |
| Technology | 5 |
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