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| 气门配气系统 | |||
| 配气机构 | |||
| 阀门装置 | |||
| 活门系统; 阀系统 | |||
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valve system : 44 phrases in 11 subjects |
| Automobiles | 18 |
| Aviation | 1 |
| Electronics | 5 |
| Mechanic engineering | 1 |
| Metallurgy | 5 |
| Oil / petroleum | 3 |
| Refrigeration | 1 |
| Shipbuilding | 2 |
| Space | 1 |
| Technology | 6 |
| Telecommunications | 1 |
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