after-treatment of pigment
[化] 颜料后处理
after-treatment with bleaching powder
[机] 漂白粉后处理法
after-treatment with coppersulfate
[机] 硫酸铜后处理
after-treatment with metallic salt
[机] 金属盐后处理
after-treatment with peroxide
[机] 过氧化物后处理
after-treatment with tonnin
[机] 鞣酸后处理
