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| качающийся клапан | |||
| rocker valve: 35 phrases in 8 subjects |
| Armored vehicles | 9 |
| Automobiles | 11 |
| Aviation | 2 |
| Mechanic engineering | 1 |
| Mechanics | 1 |
| Nuclear and fusion power | 1 |
| Oil and gas technology | 1 |
| Technology | 9 |
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