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受精
释义
受精
Encyclopedia
理学
受精(植物)
释
fertilization(plant)
受精(植物)
通常有广义和狭义两个概念。广义概念指从花粉落在柱头上到精卵融合完成的整个过程,因此,受精过程可分为两个阶段,即配子配合前阶段和配子配合阶段,这一概念通常用于被子植物。狭义概念仅指雌雄配子的融合过程。
理学
受精
释
fertilization
受精
单倍体的精子和卵子相互结合并融合形成双倍体合子的过程,是有性生殖生物个体发育的起点。
Biology
fertilization; spermatization
受精
随便看
differential star catalogue
differential stress
differential structure
differential subfield
differential subordination
differential subring
differential subsheaf
differential substitution
differential system
differential theorem
differential thermal analysis
differential thermal analysis and thermal gravimetric analysis
differential thermal analysis (DTA)
differential thermal analysis, DTA
differential thermal resistance law
differential threshold
differential throttle effect
differential-topological method
differential topology
differential transformer
differential transformer sensor
differential twisted pair
differential type
differential type detector
differential using frequency modulation data link
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