单词	活塞[胀]圈
释义	同活塞环--活塞[胀]圈
随便看	national highway traffic safety administration 国家公路交通安全管理局 national history national hockey league 国家冰球联盟 national holiday national honor national honour national hot rod association 全国改装式高速汽车协会 national housing agency 全国住房管理署 national hunt national hunt racing national hymn nationalhymne nationalhymne {ger.} national identity national identity card national identy national image national imagery and mapping agency national imagery and mapping agency {=nima} national income national income at factor cost national income at market price national income(ni) national incomes commission national incomes commission 国民收入委员会