After refining, there is one thick layer of residue on surface of aluminum liquid, including various metal aluminums, while reside-crash agent can increase surface stress of residue and aluminum medium. With stirring, the applied aluminum liquid and reside can be effectively separated, then residue become dry powder which can lower aluminum content to lessen loss.
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after-refining technique 后精制工艺
After refining and unifying it can be easily promoted at grass-roots level, so it is worth trying.
经过提炼和规范可方便地在基层推广,值得一试。
Conclusion This method is suitable for industrialization. High purity of triterpenoid acid was producing after refining.
结论该提取方法适合于工业化,重结晶可精制得到高纯度的三萜酸。
French idiom is a bright jewel of language treasure house of France and the essence of French after refining through the ages.
法语成语是法兰西语言宝库中一颗璀璨耀眼的明珠,是法兰西语言千古锤炼的精华,是反映法兰西民族社会风情的一面镜子。
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