poppet的知识精选

“poppet”可以造什么句,poppet造句
Thecheckvalvepoppetassemblyshallbeguidedviatheuseofacorrosionresistantplasticguide.Inthiscaseaproportionalsolenoidisusedtopushapoppetagainstaseatviaaspring.Sheisaquietbuthard-workinggirl.Shehasagoodmo...
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