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大孢子囊
释义
大孢子囊
Encyclopedia
理学
〔植物形态与结构〕
释
megasporangium
大孢子囊
孢子体进行无性生殖的结构。存在于部分石松类植物(Lycophytes)即水韭科(Isoetaceae)、卷柏科(Selageinellaceae),水生蕨类植物(Ferns)即蘋科(Marsileaceae)、槐叶蘋科(Salviniaceae),以及所有种子植物(spermatophytes)的成熟孢子体上。
Biology
macrosporangium
大孢子囊
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X-ray diffraction for polymer structure
X-ray diffraction method
X-ray diffraction of crystals
X-ray diffraction pattern
X-ray diffraction topography
X-ray diffraction (XRD)
Xray diffraction (XRD)
X-ray diffractometer
X-ray diffractometry
Xray diffractometry
X-ray diffuse scattering
X-ray diode
X-ray dose and
X-ray double-crystal diffraction
X-ray dynamic examination
X-ray eclipse
X-ray eclipsing star
X-ray edge problem
X-ray effects of nuclear explosion
X-ray emission
X-ray emission of active galactic nucleus
X-ray emission of galaxies
X-ray emission of galaxy clusters
X ray emission spectroscopy
X-ray emission spectroscopy
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