Presensitized plate(ps.plate): Any metal or paper lithographic printing plate which has been precoated with a photosensitive material.是什么意思_Presensitized plate(ps.plate): Any metal or paper lithographic printing plate which has been precoated with a photosensitive material.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句