“稀土元素”的概念、定义、翻译、参考文献-科学参考

　

单词	稀土元素
释义	稀土元素 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）。 Astronomy rare-earth element稀土元素 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	Records of Buddhist Monasteries in Luoyang Records of Campaigns to Overthrow the Southern Song Dynasty Records of Changan City Records of Changan City and Luoyang City in Tang Dynasty Records of Chinese Nation by Liu Shipei Records of Colored Wall-Covering Records of Common Sayings Records of Conversations in Summer Vacation Records of distinguishing falsehood in the Zhiyuan era Records of Donghua Records of Dreams of Glory Records of Eastern Slope Records of Emperor Kangxi's Words and Deeds Records of Emperor Qianlong's Words and Deeds records of emperors' comments on governance Records of Family Names Records of Famous Ceramics in Yangxian Records of Flower Growing Records of Foreign Countries Records of Garden Making Records of His Majesty's Sixtieth Birthday Celebrations Records of Imperial Examination Records of Insisting on Guests to Stay Records of Jinchuan Battle Records of Literary Delicacies

　

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。

　

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