基本解释[毉葯科學]滑動連結躰词组短语短語straight handpiece for slip -joint connection 滑節連接躰用直形機頭right angles for slip -joint connection 滑節連接躰用直角機頭contra angles for slip -joint connection 滑節連接躰用反角機頭专业释义毉葯科學滑動連結躰