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| испытания кислородной системы | |||
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oxygen tests : 16 phrases in 9 subjects |
| Astronautics | 1 |
| Cement | 2 |
| Hydraulic engineering | 2 |
| Immunology | 1 |
| Medical | 2 |
| Metallurgy | 1 |
| Oil / petroleum | 3 |
| Polymers | 1 |
| Technology | 3 |
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