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茎源根系
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茎源根系
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农学
﹝经济林生长发育规律﹞
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cutting root system
茎源根系
依据某些果树枝条茎段上容易产生不定根的特点,将其扦插、压条,由无性繁殖途径单独形成植株个体,该植株的根系称为茎源根系。
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social self
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social service agency valuation
social service management informatization platform
social service of geological data
Social service platform
social services
social services projects proposal
social service system for the disabled
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social software
social solidarist school of law
social solidarity of villages
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social space and social time
social space in urban China
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