有關poppet的精選大全

用poppet造句子,“poppet”造句
Thecheckvalvepoppetassemblyshallbeguidedviatheuseofacorrosionresistantplasticguide.Inthiscaseaproportionalsolenoidisusedtopushapoppetagainstaseatviaaspring.Sheisaquietbuthard-workinggirl.Shehasagoodmo...
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