pumicen.浮石;浮岩v.用浮石磨;用轻石擦净
pumiceous concrete浮石混凝土
pumice-slag brick浮石渣砖
pumiceous structure泡沫构造
pumice fall deposit浮石下落堆积层,浮岩雨沉积
pumice stone concrete浮石混凝土
pumice grinding grease浮石研磨膏
pumice insulation brick浮石保温砖
pumice polishing grease浮石抛光膏
pumice of Changbai Mountain长白山浮石
Pumice light - weight aggregate浮石轻骨料