roll shell滚轮: contact roller; trolley whee ...缘: reason轮缘: flange; wheel flange; [木] felloe; felly; flange of wheel; runner band (涡轮的); shell of roll; wheel rim滚轮: contact roller; trolley wheel (电车接电轮)车轮缘: flange下载手机词典可随时随地查词查翻译关注微信公众号：chachacidian，回复:滚轮缘，即可在微信中查询翻译
