“稀有元素”的概念、定义、翻译、参考文献-科学参考

单词	稀有元素
释义	稀有元素 Encyclopedia 理学短周期释 rare element稀有元素自然界中储量、分布稀少（一般地壳丰度为0.01%以下）且人类应用的量较少的元素总称。 Chemistry ＞无机化学＞无机化学基本概念与无机化合物＞释义 rare element稀有元素
随便看	closed orthogonal system closed orthonormal system closed path closed path Green's function closed path; loop closed path space closed pipe closed plane closed pneumothorax closed point closed point set Closed Population closed power station closed professional sports league closed pseudo-manifold closed quadrature formula closed quantum system closed range theorem closed ray closed region closed reserve system closed resonator closed Riemann surface closed ring closed scheme

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。