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📁 地质

Geology is the study of Earth history, structure, composition and life forms.

子分类

📁 Geochronology

📁 Geomorphology

📁 RocksandMinerals

📁 GeologicTime

📁 GlaciersandIceAges

📁 PlateMovements

📁 MountPinatubo

条目 (2+)

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Devonshire Associates Ltd

http://www.devonline.com/

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Dissertation CIS

http://disseng.com/

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