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方法是:人粪尿50份,裝入缸内严封发酵,再将50份石膏燒成熟石膏加入发酵的人粪尿中,缸口用泥封閉,放在溫度
Method is: 50 parts of human excrement, into the cylinder seal fermentation, and then 50 copies of plaster burned mature gypsum added fermented human excrement, the cylinder closed with mud, on the temperature