?漂白土

... 蛋白土 opoka 漂白土 active earth; albic; beached earth; bleached earth; bleached soils; bleaching clay; bleaching earth; bleicherde; china clay; creta; discoloring clay; discoloring earth; florida clay; floridin; fuller earth; fuller'searth; goumbrine; greda; gumbrine; milled clay; starching clay; whitish soil 细白土 fine clay ...