removable conical cover活动: move about; exercise锥形: taper; cone; cone-shape滑动锥形体: sliding wedge主动锥形轮: driving cone pulley主动锥形盘: ausgangskegel driven pulley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:活动锥形套，即可在微信中查询翻译
