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| pneumatic valve | |||
| air pressure valve; pressure lock | |||
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气压 阀 : 83 phrases in 14 subjects |
| Automobiles | 13 |
| Aviation | 8 |
| Compressors | 4 |
| Electronics | 3 |
| Hydroelectric power stations | 1 |
| Mechanics | 1 |
| Metallurgy | 6 |
| Nautical | 2 |
| Oil / petroleum | 6 |
| Rail transport | 2 |
| Refrigeration | 4 |
| Shipbuilding | 9 |
| Space | 5 |
| Technology | 19 |
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