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| травление; гравировка; гравюра; офорт | |||
| 腐蚀法: 29 phrases in 7 subjects |
| Chemistry | 1 |
| Electronics | 5 |
| General | 13 |
| Metallurgy | 1 |
| Military | 1 |
| Radio | 1 |
| Technology | 7 |
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