... 地质前途：geological promising 地质年代单位：geochronologic unit 地质年代测定法：geochronometry ...
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?地质时间单位
... 地质时间 geological time 地质时间单位geochronologic unit地质时间单位 geologic time unit ...
双语例句
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The geochronologicunit is belonged to Early Age of Middle Devonian Epoch, and correspond to Eifelicus Stage-Jiweite Stage, and is belonged to Daminshan Formation of Devonian system.