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| хорошо действующий; эффективный; действенный | |||
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効 : 174 phrases in 11 subjects |
| Aviation | 2 |
| Chemistry | 5 |
| Communications | 2 |
| Elections | 1 |
| Electronics | 5 |
| Metallurgy | 5 |
| Nautical | 1 |
| Nuclear physics | 1 |
| Radioengineering | 3 |
| Technology | 148 |
| Telephony | 1 |
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