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阀门瓣,片 | |||
阀瓣 | |||
阀舌; 阀盘 | |||
English thesaurus | |||
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valve flapper (ssn) |
valve flap : 35 phrases in 12 subjects |
Agriculture | 1 |
Automobiles | 1 |
Aviation | 2 |
Chemistry | 1 |
Compressors | 5 |
Ecology | 2 |
Engineering geology | 2 |
General | 1 |
Hydroelectric power stations | 2 |
Nautical | 1 |
Technology | 16 |
Water resources | 1 |