Waste derived from human activitirs, such as rapeseed placentiform from the extraction of rape oil;fruit faeces from the extraction of fruit juice;chicken excrement from the scall farming of chickens.
摘废弃
是人类为满足
身需
的产
,如菜籽饼来
油菜籽取油,果渣来
果取汁,鸡粪来
规模化养鸡。