请输入您要查询的字词:
单词
Crab Nebula
释义
Crab Nebula
Encyclopedia
理学
蟹状星云
释
Crab Nebula
蟹状星云
金牛座的一团无定形的膨胀气体云。星表中的编号为M1和NGC1952。标准历元J2000为赤经05h34m31.94s,赤纬+22°00′52.2″。角径为7′×4′,视亮度相当于9等星。
Astronomy
Crab Nebula
蟹状星云
随便看
Collections of Dunhuang Bianwen
Collections of Dunhuang Poetry
collections of poems of the Tang Dynasty, block-printed edition made in Sichuan, Song Dynasty
collections of poems of the Tang Dynasty, copper letter press, Ming Dynasty
Collections of Taoist Canon Quintessences
collection storage
collection storage area
collection storage rooms
collection system and its structure
collection technique of trace evidence
collection theory
collection transport corridor
collection unpacking room
collection usage statistics
collection warehouse/storage
collection weeding
collectionwise Hausdorff space
collectionwise normal space
collective
collective actions
collective action theory
collective administration of copyright
collective agreement
collective bargaining
collective bargaining agreement of professional sports
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:2025/10/13 4:17:43