Mordants played a certain degree of role in color deepening and dry rubbing fastness, among which copper sulfate gave quite good deepening effect.是什么意思_Mordants played a certain degree of role in color deepening and dry rubbing fastness, among which copper sulfate gave quite good deepening effect.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句