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| полый | |||
| полый волновод | |||
| hollow-type: 20 phrases in 13 subjects |
| Aerohydrodynamics | 1 |
| Chemistry | 2 |
| Construction | 1 |
| Electrical engineering | 1 |
| Food industry | 1 |
| Makarov | 3 |
| Meat processing | 1 |
| Medical appliances | 1 |
| Military | 1 |
| Oil / petroleum | 2 |
| Oilfields | 2 |
| Technology | 3 |
| Transport | 1 |