flapper的知识精选

“flapper”可以造什么句,flapper造句
Accordingtostructuralcharacteristicsofaflappervalve,flappervalves,butterflyvalves,ballvalves,diaphragmvalves,Anglevalves,throughthevalve,three-wayvalve.Thesimpleprintdresswithawaistlineandlongerhemlen...
“flapper valve”可以造什么句,flapper valve造句
1、bulkheadflappervalve2、single-jetflappervalve3、Accordingtostructuralcharacteristicsofaflappervalve,flappervalves,butterflyvalves,ballvalves,diaphragmvalves,Anglevalves,throughthevalve,three-wayval...
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