“皂土”的拼音为：zào tǔ...

皂土是一种可膨胀的土层粘土矿物.Bentonite is an expandable three - layer clay mineral.该洗涤工序排出的废水,同其重量的0.15%的胶性皂土混合.The waste liquor from this scouring step agitated with 0.15 % of its weight of colloidal bentonite....

“皂土”的英语可以翻译为：entonite ...