“natural radioelement”的概念、定义、翻译、参考文献-科学参考

单词	natural radioelement
释义	natural radioelement Encyclopedia 理学放射性元素释 natural radioelement天然放射性元素最初是从自然界中发现而不是用人工方法合成的放射性元素。天然放射性元素有钋、氡、钫、镭、锕、钍、镤和铀8个元素。
随便看	full factorial design full faithful functor full flag full flag structure full-floating mandrel mill full-flow staged combustion liquid rocket engine full form full form sculpture full-frame CCD full frame digital camera full functor full grain leather full group full group of automorphisms Full History of Great Vietnam full homomorphism full hybrid electric full-hydraulic power control system full image full imbedding full implicit method fulling full inhomogeneous Lorentz group full invariance full invariant series

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。