Lithographic printing aluminum plate was systematically ac electrograined to investigate the nucleation and growth of the etch pit and the formation of the etch film.是什么意思_Lithographic printing aluminum plate was systematically ac electrograined to investigate the nucleation and growth of the etch pit and the formation of the etch film.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句