短语词组短语impregnant quantity 浸渍量organic impregnant 有机溶剂liquid impregnant 液体含浸剤impregnant agent 浸渍胶Impregnant Resistance 耐溶剂性resin impregnant 树脂浸渍剂impregnant pitch 浸渍剂沥青pitch impregnant 沥青浸渍剂 返回 impregnant