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| pressure vacuum principle (MichaelBurov); vacuum pressure principle (MichaelBurov); vacuuming principle (MichaelBurov); vacuuming method (MichaelBurov) | |||
| метод вакуумирования: 6 phrases in 5 subjects |
| Astronautics | 1 |
| Construction | 2 |
| Medical | 1 |
| Refrigeration | 1 |
| Road works | 1 |