roller seat滚柱: pin roller座: seat; place滚柱座圈: roller race柱座: apophyge; column base; stylobate滚柱: pin roller◇滚柱轴承 roller bearing; 滚柱轴承钢 roller bearing steel; 滚柱轴承环 roller race下载手机词典可随时随地查词查翻译