词汇	valve leather
释义	valve leather 阀皮
随便看	preserving glasses preserving green preserving health preserving human nature preserving, improving preserving in an inert atmosphere preserving-integral operator preserving jar preserving jar ring preserving kettle preserving material preserving melon Preserving methods preserving moisture of fruit tree preserving obligation preserving of fish preserving of foodstuffs preserving of raw hides preserving oil preserving paintings preserving period preserving preservation timber preserving process preserving rate preserving ratio