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valve clack | |||
valve flap |
阀 舌: 34 phrases in 13 subjects |
Agriculture | 1 |
Automobiles | 2 |
Aviation | 1 |
Compressors | 7 |
Electronics | 1 |
Engineering geology | 1 |
General | 2 |
Hydroelectric power stations | 2 |
Industry | 1 |
Mechanic engineering | 1 |
Refrigeration | 3 |
Technology | 9 |
Water resources | 3 |