Principle and operation technology of removing silicon,phosphorous and arsenic from sodium wolframate is presented.
阐述了钨酸钠溶

硅、磷、
的原理,并提出了具体的操作工艺。
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In China, its traditions are directly linked to the legend of Qu Yuan-eating the dragon's offering, zongzi, drinking the spirit that killed the dragon, realgar wine, which actually contains trace amounts of arsenic, it was originally used as pesticide.
在中国,端午节庆的传统直接与屈原的传说连结--吃龙的供品,粽子、

龙的烈酒,雄黄酒,而它其实含有微量的砒霜,原本是用来当作
虫剂的。



