请输入您要查询的字词:
单词
𬭛
释义
𬭛
Encyclopedia
理学
放射性元素
释
bohrium
𬭛
人工放射性元素,元素符号Bh,原子序数107,半衰期最长的同位素的质量数270。属周期系ⅦB族。为纪念丹麦物理学家N.玻尔[注]而命名的。曾被称为107号元素(unnilseptium),符号Uns。
随便看
A Collection of Classic Sichuan Opera
A Collection of Detective Stories
A Collection of Drama Scripts by Li Ciming
A Collection of Eight-Legged Essays Compiled by the Imperial Decree
A Collection of Essays of the Qing Dynasty
A Collection of Essays Unparalleled in Both Ancient and Present Times
A Collection of Excellence of the Nation
A Collection of Extraordinary Stories
a collection of famous places and sceneries in Hangzhou
A Collection of Film Memories
A Collection of Four Ballads
A Collection of Geography Books from Han and Tang Dynasties
a collection of Huang Tingjian’s inscriptions
A Collection of Illustrative Plates of Beijing Opera Performed During Mei Lanfang's Visit to the United States
A collection of Imitated Scripts on Ancient Books of Ming Dynasty
A Collection of Imitated Scripts on China's Ancient Books
a collection of jottings
A Collection of Literary Sketches in Past Dynasties
A Collection of Local Dramas
A Collection of Miscellaneous Talks
A Collection of Moral Science
A Collection of Native Opera Plays of Henan Province
A Collection of Painters of Diverse Branches
A Collection of Poems by Eminent Talents of the Song Dynasty
A Collection of Poems by Southern Song Poets
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:2026/10/28 7:49:28