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STAS 8380-1979 AGROZOOTECHNICAL CONSTRUCTIONS Vocabulary《农业技术构造 词汇 》.pdf

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GOST 23729-1988 Agricultural machinery Economic evaluation of special machines《农业技术 专用机械的经济评估方法》.pdf

GOST 23730-1988 Agricultural machinery Economic evaluation of universal machines and technological complexes《农业技术 万能机械和工艺综合机械的经济评估方法》.pdf

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