“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	crime of dereliction of duty in preventing infectious diseases crime of dereliction of duty in the commodity inspection crime of dereliction of duty of a person who is directly in charge of a state-owned company,enterprise or institution crime of dereliction of duty resulting in detainees to escape crime of destroying computer information system crime of destroying evidence，forgery and obstruction of testimony by the defender or the agent of a lawsuit crime of destroying protected natural areas crime of destroying weapons and equipment, military installations and military communications crime of destruction of military marriage crime of destructive mining crime of disclosing and reporting case information that should not be disclosed crime of disclosing state secrets by negligence crime of disclosing state secrets deliberately crime of disclosure of case information that should not be disclosed crime of dismembering the state crime of disobedience to order in wartime crime of disrupting animal and plant epidemic prevention and quarantine crime of disrupting court order crime of disrupting elections crime of disrupting liquidation crime of disrupting public affairs crime of disrupting the order of prison manage crime of disturbing military hearts by spreading rumors in war crime of disturbing the order of radio communication management crime of disturbing the working order of state organs

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