 |
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| helicopter industry (Sukhopleschenko) | |||
| helicopter engineering (ssn); helicopter manufacturing (Alex_Odeychuk) | |||
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| rotary wing aircraft engineering (ср. самолетостроение – fixed wing aircraft engineering masizonenko); rotorcraft engineering (ср. самолетостроение – fixed wing aircraft engineering masizonenko) | |||
| вертолётостроения: 2 phrases in 2 subjects |
| Astronautics | 1 |
| Aviation | 1 |