英语词汇“a knotty technical problem of long standing”的翻译、意思、用法、释义-英汉汉英双解词典

词汇	a knotty technical problem of long standing
释义	a knotty technical problem of long standing 老大难的技术问题
随便看	plate whirler Plate width plate winding plate wire plate wire mechanical filter plate-wire mechanical filter plate wire memory plate with plate with a hole plate with carved designs plate with circular hole plate with circular opening Plate with cone,base plate with hole plate with holes plate with opening plate with rectangular opening plate with square opening plate with trademark plate wldth-thickness ratio plate work plate-work platework and welding section plate work and welding section plate-work and welding section