grinding hole研磨: grind; pestle abrade; polish孔: hole; opening; aperture磨孔: hole grinding磨孔机: hole grinding machine磨孔器: hone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:研磨孔，即可在微信中查询翻译
