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| последовательность работы клапанов (Yeldar Azanbayev) | |||
| valve sequence: 26 phrases in 10 subjects |
| Astronautics | 2 |
| Automated equipment | 4 |
| Aviation | 1 |
| Construction | 2 |
| Mechanics | 1 |
| Oil / petroleum | 1 |
| Oil and gas | 1 |
| Oil and gas technology | 1 |
| Oilfields | 1 |
| Technology | 12 |