This paper introduces in detail the present situation in research and development of bulk ferromag-netic amorphous alloys produced by the slow cooling and solidificatin technique. 根據國內外發表的最新文獻詳細介紹了利用緩冷凝固技術製備的鐵磁性大塊非晶合金的研究開發現狀。
Theprinciple of wet-way purification has been analyzed according to the mineralcharacteristics and current developing situation of Guangxi Ningming bentonite in thispaper. 根據廣西寧明膨潤土的礦物特性和目前的開發現狀，分析了濕法提純的原理。
