单词	dutch collar
释义	dutch collar 马胸套
随便看	seal box briquette seal-brown seal brown seal bushing seal by seal by arrow-like ring seal by bimetallic O-ring with teflon seal by B-ring seal by direct contact of conical faces seal by double conical frustum seal by double knife-edges double knife-edge seal seal by duplex conical gasket seal by elastomeric delta gasket seal by elastomeric O-ring seal by flat gasket seal by metallic delta gasket seal by metallic oval-ring seal by plug seal by precision fit seal by screwed union seal by simplex conical gasket seal by sleeve seal by special wedge-like gasket seal by stainless conical ring seal by wedge-like gasket 蜽蜾蜿蝀蝁蝂蝃蝄蝅蝆丹毒丹田丹皮丹砂丹粉丹精丹红丹若丹荔丹诀