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| coefficient of thermal efficiency | |||
| heat efficiency | |||
| thermal efficiency (КПД) | |||
| thermal efficiency (коэффициент использования тепла) | |||
| ideal thermal efficiency | |||
| thermal efficiency (к.п.д.) | |||
| thermal efficiency | |||
| термический коэффициент полезного действия: 7 phrases in 5 subjects |
| Armored vehicles | 2 |
| Astronautics | 1 |
| Automobiles | 2 |
| Technology | 1 |
| Thermodynamics | 1 |