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单词
double fertilization
释义
WordReference Random House Unabridged Dictionary of American English © 2024
dou
′
ble fertiliza
′
tion,
Botany
the fertilization process characteristic of flowering plants, in which one sperm cell of a pollen grain fertilizes an egg cell while a second fuses with two polar nuclei to produce a triploid body that gives rise to the endosperm.
1905–10
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更新时间:2025/11/11 11:49:31