flapper valve造句
1、bulkheadflappervalve2、single-jetflappervalve3、Accordingtostructuralcharacteristicsofaflappervalve,flappervalves,butterflyvalves,ballvalves,diaphragmvalves,Anglevalves,throughthevalve,three-wayval...
相关flapper的文学知识
flapper造句
Accordingtostructuralcharacteristicsofaflappervalve,flappervalves,butterflyvalves,ballvalves,diaphragmvalves,Anglevalves,throughthevalve,three-wayvalve.Thesimpleprintdresswithawaistlineandlongerhemlen...