The ubiquity of phenanthrene series, chrysene series compounds, perylene and retene compounds in the sediment indicated that PAHs mainly came from the terrestrial plants.
在中检测到角鲨烯,表明这一地区存在生甲烷合成和细菌作用,具有生成油及水合可能性。
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But did you know that shark livers is a major source of squalene?
但是你知道鲨鱼肝是角鲨烯来源吗?
For instance, squalene is a key ingredient of moisturizer.
,角鲨烯是保湿霜关键成分。
Instead, we can now make squalene by fermentation of cane sugar, and it's even available on Amazon.
相反, 我们现在可以通过发酵蔗糖来制造角鲨烯,它甚至可以在亚马逊上买到。
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