This working paper includes the following headings: basic and applied sciences; field crop production and soil management; horticulture; animal husbandry; animal health; farm power, workshop processes and practices, rural structures, irrigation and drainage, surveying, and topography; agriculture mechanization; farm business management; home economics for rural development; rural home economics; nutrition and food science; fisheries; forestry; extension...
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详细
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1978/08/01
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工作文件
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UNN285
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8
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16 (参阅所有文档系列)
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2020/06/20
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Disclosed
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Graphic production technician : printing
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HTML