The basic principle of refining orpiment and realgar was discussed .

讨论了雌雄黄的提炼原理。

Aims : providing services to enhancing the quality of the young rural entrepreneurs as well as boosting the member enterprise economic returns , improving the prosperity of the chinese rural economy and the devil orpiment of the society .

协会宗旨是:为提高乡镇企业青年厂长（经理）的素质服务，为提高会员企事业经济效益服务，为促进中国农村经济繁荣和社会发展服务。