Secondary in abundance are aromatic sester and sesquiterpenoid hydrocarbons,but aromatic diterpenoids, most of the regular PAH are found at trace levels only.
但芳香二萜类,大多数常规多环芳烃量形式存
。
Secondary in abundance are aromatic sester and sesquiterpenoid hydrocarbons,but aromatic diterpenoids, most of the regular PAH are found at trace levels only.
但芳香二萜类,大多数常规多环芳烃量形式存
。
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