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

单词	rare earth elements
释义	rare earth elements Chemical Engineering The oxides of a group of elements in the periodic table known as lanthanoids. Unlike their name would suggest, they are not rare but are widely found. They are extracted for use in electronic equipment such as mobile telephones.
随便看	Second Front second fundamental form second generation second-generation biofuel second-generation Web site second home second law of thermodynamics second-level domain Second Life second messenger second normal form second of arc second-order approximation second-order circuit second-order control system second-order differential equation second-order logic second-order partial derivative second-order reaction second-order stationary second-price auction Second Reich second(symbol: s) second(time) secretary bird

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