请输入您要查询的字词:
单词
pollen
释义
pollen
Encyclopedia
理学
花粉
释
pollen
花粉
由花粉母细胞(又称小孢子母细胞)减数分裂产生的小孢子进一步分裂和分化形成的多细胞结构,是种子植物特有的结构。
理学
花
释
pollen; pollen grain
花粉
花药成熟时的雄配子体或花粉囊开裂释放出来的雄配子体。种子植物特有的结构。
Biology
pollen
花粉
随便看
Sumner crater
Sumner line
sumo
sum of all coefficients equal to 1
sum of a progression
sum of a series
sum of cardinal numbers
sum of deviations squares
sum of divisors
sum of energy production
sum of events
sum of ideals
sum of irrational radicals
sum of linear convolution
sum of matrices
sum of numbers
sum of operators
sum of order types
sum of ordinal numbers
sum of powers
sum of powers conjecture
sum of prime factors
sum of products
sum of random many of random variables
sum of sequences
科学参考收录了854744条科技类词条,基本涵盖了常见科技类参考文献及英语词汇的翻译,是科学学习和研究的有利工具。
Copyright © 2000-2023 Sciref.net All Rights Reserved
京ICP备2021023879号
更新时间:2026/1/11 16:51:25