Actually, this is ovine end of secretion of sebaceous glands of hypodermic and adipose, adipose, sheep and muscle clearance adipose in a kind of when contain volatile fatty acid.

• 其实，这是羊尾脂肪、皮下脂肪、羊皮脂腺分泌物和肌肉间隙的脂肪中所含的一种挥发性脂肪酸。