“同位素丰度”的概念、定义、翻译、参考文献-科学参考

单词	同位素丰度
释义	同位素丰度 Encyclopedia 理学元素符号释 isotopic abundance同位素丰度以原子百分数表示的地壳中某种元素各同位素的相对含量。例如，氧的同位素16O、17O、18O的原子百分数即同位素丰度（%）为99.76、0.04和0.20。自然界中氟、钠、铝等21种元素都只有一个同位素，因此19F、23Na、27Al等的同位素丰度为100%。 Physics 原子核物理学、粒子物理学原子核物理学 isotopic abundance同位素丰度＞原子核物理学＞原子核基本性质＞释义 isotopic abundance同位素丰度 isotopic abundance同位素丰度^† Astronomy isotopic abundance同位素丰度
随便看	Science and Human Behavior Science and Industry Museum，Manchester science and technological achievements statistics science and technological output statistics science and technology archives management science and technology center science and technology competitiveness evaluation Science and Technology Daily Science and Technology Development Planning (1956—1967) science and technology dictionary science and technology evaluation science and technology exhibition science and technology in Ancient Mesopotamia science and technology information analysis Science and Technology Information Institute of the Philippines science and technology information resources science and technology information service science and technology insurance Science and Technology Knowledge Organization System, STKOS science and technology law Science and Technology of Food Industry science and technology of pratacultural in China science and technology policy evaluation science and technology project evaluation science and technology revolution

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。