久久国产欧美日韩精品,日韩国产精品久久久久久亚洲,99视频精品全部免费免费,91精品国产综合久久走光

“皂土”的拼音為：zào tǔ...

“皂土”的英語可以翻譯為：entonite ...

皂土是一種可膨脹的土層粘土礦物.Bentonite is an expandable three - layer clay mineral.該洗滌工序排出的廢水,同其重量的0.15%的膠性皂土混合.The waste liquor from this scouring step agitated with 0.15 % of its weight of colloidal bentonite....