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geolipids
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geolipids
Encyclopedia
理学
地质类脂物
释
geolipids
地质类脂物
保存在岩石或沉积物中的生物脂类或由生物脂类通过地质作用转化而来的有机化合物。常见的地质类脂物有正构烷烃、支链烷烃、类异戊二烯烃、芳香烃及其对应的酸、醇和酮等化合物,大部分是石油的重要组成部分。
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urban population distribution in China
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urban population size in the administration area of city
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urban primacy
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