core cone bit牙轮: gear wheel; gear取: take; get; fetch心: the heart钻头: boring crown; bore bit; dril ...涡轮取心钻头: turbo-core bit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:牙轮取心钻头，即可在微信中查询翻译
