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| potencia anódica de entrada de c.c | |||
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direct current : 77 phrases in 11 subjects |
| Communications | 9 |
| Earth sciences | 11 |
| Electronics | 23 |
| Energy industry | 1 |
| Health care | 3 |
| Information technology | 8 |
| Mechanic engineering | 7 |
| Metallurgy | 2 |
| Municipal planning | 1 |
| Technology | 2 |
| Transport | 10 |