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中国大豆栽培史
释义
中国大豆栽培史
Encyclopedia
管理学
〔中国作物栽培史〕
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history of soybean cultivation in China
中国大豆栽培史
大豆在中国从野生品种经过演化、长期定向选择、改良驯化,到最后人工专业种植的过程和历史。大豆作为五谷之一,不仅承担着粮食作物的职责,同时也是经济作物中重要的农产品,发展至今,已经成为中国大宗农产品最重要的作物之一。
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high-temperature adhesive
high temperature and conductivity high copper alloy
high temperature and high pressure method
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