hole openeropening bit开眼: open one's eyes; add to one' ...钻头: boring crown; bore bit; dril ...喷射开眼钻头: jet spud bit扩眼钻头: enlarging bit; reamer; reaming bit; reamingbit; redrill bit领眼钻头: pilot bit下载手机词典可随时随地查词查翻译