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农学
自根繁殖
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在植株枝条不离开母体的情况下将其埋入土中或其他的湿润基质中,诱导产生不定根后再与母株分离,形成一个新的独立植株进行繁殖的技术措施。
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positive
positive affine mapping
positive aging
positive analytic function
positive and negative
positive and negative energy plane wave solutions of Dirac equation
positive and negative feedback modes of scanning electron microscope
positive angle
positive angle shot
positive asymmetry
positive bias
positive boundary
positive bounded operator
positive braid
positive bundle
positive calculus
positive chain complex
positive channel metal-oxide-semiconductor circuit
positive channel metal-oxide-semiconductor integrated circuit
positive charge
positive closure
positive clutch
positive column
positive complex
positive component
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