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cattle dung

cattle dung

cattle dung

cattle dung

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Scientists in Japan Say They Have Found a New Source of Gasoline : Cattle Dung .

日本科学家已经发现了一种新的汽油来源：牛粪。

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Study on Manufacture of Amino -Fulvic Acid from Cattle Dung by Chemical Oxidation

牛粪氧化降解制取氨基 -黄腐酸的研究

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Japanese Make Gasoline From Cattle Dung

日本用牛粪制造汽油

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