impact grinding冲击: lash; pound磨: mill; millstones矿: ore deposit冲击磨耗: pounding wear冲击磨蚀: impingement erosion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:冲击磨矿,即可在微信中查询翻译