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
数常规
环芳烃仅以微量形式存在。
, 

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
数常规
环芳烃仅以微量形式存在。
声明:以
例句、词性分类均由互联网资源自动生成,部分未经过人工审核,其表达内容

表本软件的观点;若发现问题,欢迎向我们指正。