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| engineering change incorporation | |||
| внесение технических изменений: 57 phrases in 10 subjects |
| Aviation | 2 |
| Economy | 3 |
| Energy industry | 4 |
| General | 1 |
| Military | 29 |
| Oil / petroleum | 4 |
| Printed circuit boards | 1 |
| Technology | 5 |
| Telecommunications | 5 |
| Weapons of mass destruction | 3 |