flanged bottom凸缘: flange; bourrelet; lug; rim底: bottom; base凸缘底板: bottom flange plate; pan shaped base; pan-shaped base凸缘底座电动机: flange motor凸缘: flange; bourrelet; lug; rim 环状凸缘 collar flange; 接头凸缘 joint flange; 凸缘管 pipe flange下载手机词典可随时随地查词查翻译