annular buffing section环形: annular; ringlike; ring form ...抛光: polishing; burnishing; buffi ...部分: part; section; portion鼓形抛光轮: drum sander尖形抛光刷: pointed polishbrush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:环形抛光部分，即可在微信中查询翻译
