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颈卵器
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颈卵器
Encyclopedia
理学
〔植物形态与结构〕
释
archegonium
颈卵器
苔藓植物、蕨类植物和大多数裸子植物的雌性生殖器官。产生卵细胞、受精及原胚发育的场所。
Biology
archegonium
颈卵器
随便看
point of contact
point of continuity
point of contrary flexure
point of control
point of convergence
point of density
point of determinacy
point of discontinuity
point of dispersion
point of divergence
point of division
point of double inflexion
point of emanation
point of fracture
point of geological observation
point of higher order
point of indeterminacy
point of infinity
point of inflection
point of inflexion
point of interest
point of intersection
point of irreducibility
point of libration
point of local connectivity
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