请输入您要查询的字词:
单词
megasporangium
释义
megasporangium
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。
随便看
planet aberration, planetary aberration
plane table
plane-table equipment
plane table surveying
plane-table traverse
Planet-A probe
planetaria
planetarium
planetarium software
planetary
planetary aberration
planetary activator
planetary alignmentm
planetary and lunar ephemerides
Planetary and Space Science
planetary assembly
planetary astronomy
planetary atmosphere
planetary atmosphere exploration
planetary atmospheres
planetary biology
planetary boundaries
planetary boundary
planetary boundary layer
planetary boundary layer parameterization
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:2026/6/18 6:17:11