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| travaux de constructions expérimentales | |||
| опытно-конструкторские работы: 12 phrases in 7 subjects |
| Abbreviation | 1 |
| Agriculture | 1 |
| Aviation | 3 |
| Computers | 1 |
| Economy | 3 |
| Military | 2 |
| Occupational health & safety | 1 |
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