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土壤学 4	地球科学::海洋科学::海洋科学其他学科 4	自然地理学 4
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农学 2	地球科学 2	地球科学::海洋科学 2
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Forestry; Genetics & Heredity 1	Geochemistry & Geophysics 1	K901 1
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Mycology 1