滤砂 lǜshā filter sand Definitions Defs Origin Strokes Stroke Words Sentences Sents 滤砂 濾砂 lǜshā filter sand sand used as a filter medium permutite an artificial zeolite used for softening water
滤砂 濾砂 lǜshā filter sand sand used as a filter medium permutite an artificial zeolite used for softening water
