“rare element”的概念、定义、翻译、参考文献-科学参考

单词	rare element
释义	rare element 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	chordally convergent sequence chordal metric chordal theorem chordate chord contact method chord diagram chord-distortion theorem chord in modal exchange chord length chordless chordless cycle chord method chord of a circle chord of a conic chord of contact chord of curvature chordoma chordophone chord oscillation equation chord theorem choreme Choreoecology choreoecology choreograph choreographer

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