“rare earth element”的概念、定义、翻译、参考文献-科学参考

　

单词	rare earth element
释义	rare earth element Encyclopedia 理学稀土元素释 rare earth element稀土元素元素周期表ⅢB族中原子序数为21、39和57～71的17种化学元素的总称。稀土元素的化学符号用RE代表。又称稀土金属。包括钪Sc、钇Y、镧La、铈Ce、镨Pr、钕Nd、钷Pm、钐Sm、铕Eu、钆Gd、铽Tb、镝Dy、钬Ho、铒Er、铥Tm、镱Yb、镥Lu。其中57～71号元素称为镧系元素，位于元素周期表最下方的f区。从镧到铕为铈组（轻稀土），从钆到镥及钇为钇组（重稀土）。 Chemistry ＞无机化学＞无机化学基本概念与无机化合物＞释义 rare earth element稀土元素
随便看	chemical mineral processing of refractory run-of-mine ore chemical mineral processing of tantalum-niobium middles chemical mineral processing of tin middles chemical mineral processing of tungsten middles chemical mineral processing of uranium ore chemical mineral processing of vanadium-titanium magnetite concentrate chemical mineral processing reagent chemical models of atmospheric pollution chemical modification chemical modification of antisense oligonucleotide chemical modified starch plastics chemical modifier chemical multiway calibration chemical mutation chemical mutation breeding for forage plants chemical oscillation chemical oxidation chemical oxygen balance chemical oxygen demand chemical oxygen demand (COD) chemical patterning chemical pattern recognition chemical phase analysis chemical physics chemical plant training simulator

　

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