Damper: Roller on an offset press which applies the moisture directly to the printing plate. Also called Dampener, Damping roller, Dampening roller.是什么意思_Damper: Roller on an offset press which applies the moisture directly to the printing plate. Also called Dampener, Damping roller, Dampening roller.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句