单词 | rare-earth element |
例句 | The price of dysprosium, a “heavy” rare-earth element used in magnets for car motors, almost tripled to $305 a kilogram. Molycorp Surges as China Raises Rare Earth Deal Stakes: Real M&A 2011-03-07T00:14:39Z The company’s Mountain Pass mine, discovered in 1949 by uranium prospectors who noticed local radioactivity, dominated rare-earth element production through the 1980s. Challenging China in Rare Earth Mining 2010-04-21T16:34:00Z |
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