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双受精
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double fertilization
双受精
被子植物的同一个雄配子体中形成的两个精子,一个与单倍体的卵细胞融合形成二倍体的合子,另一个与二倍体的中央细胞融合形成三倍体的初生胚乳细胞的现象。
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double fertilization
双受精
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material and mental production
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material and technique
material arm
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material balance analysis
material balance method
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Material Change and Moral One
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Material Construction Plan for Tianjin Special Municipality City
material conversion efficiency
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material cycle of water ecosystem
material dependent society
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