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guan junwei
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guan junwei
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农学
﹝人物﹞
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guan junwei
关君蔚
(1917-05~2007-12-29)中国水土保持学家,水土保持学科的开拓者和水土保持高等教育的奠基人。又名关枢。
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tracee
trace element
trace element deficiency
trace element fertilizer
trace element geochemistry
trace element pollution
trace elements
trace elements in coal
trace element specification
trace element specification; specification analysis of trace elements
trace embedding theorems
trace enrichment
trace evidence automatic identification
trace field
trace form
trace formula
trace fossil
trace function
trace gap
trace ideal
trace indicated criminal mind
traceintersecting theory
traceless matrix
traceless tag
traceless tensor
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