请输入您要查询的字词:
单词
镭
释义
镭
Encyclopedia
理学
放射性元素
释
radium
镭
天然放射性元素,元素符号Ra,原子序数88,半衰期最长的同位素的质量数226,属周期系ⅡA族,碱土金属元素。英文名来源于拉丁文radius(射线)。
Astronomy
全称:radium。缩写:Ra
镭
Chemistry
>放射化学与辐射化学>放射性元素化学>释义
radium
镭
随便看
Developmentalism
developmental language disorder
developmentally appropriate curriculum
developmental malformation
developmental mechanisms of medicinal resources
developmental molecular markers of medicinal resources
developmental norm
developmental origins of health and disease
developmental pedagogy
developmental phase
developmental physiology
developmental plasticity
developmental psychology
developmental psychopathology
developmental reversibility
developmental rhythm
developmental science
Developmental Social Policy
developmental social work
developmental stability vs. instability
developmental strategy of tourism industry
developmental systems theory
developmental task
developmental teaching
developmental trajectory
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:2026/8/2 7:10:15