This character differs from other Ordovician source rocks elsewhere in the world such as Kukersite Kerogen in Estonia and Guttenburgen type source rocks in USA.
其组成主要有底栖宏观藻类、

物、隐孢子、疑源类和几丁虫等。
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Ariannita学美式英语(双语精选) It has produced more tech unicorns - start-ups valued at more than $1 billion - per capita than any other country in Europe after tiny Estonia, according to a report on European tech by Atomico, an investment firm.
根据投资公司Atomico发布
一份关于欧洲科技行业
报告,瑞典人均产生
科技独角兽--估值超过10亿美元
初创企业--比欧洲
任何国家都多,仅次于小国爱沙尼亚。