Faced with volatile prices for materials crucial to many of their most promising clean energy products, US corporations are quietly investing in alternative technologies and retooling their manufacturing processes to reduce demand for “rare earths”.
由于稀土价格波动剧烈，美国企业正悄悄投资于另类技术，并改进制造流程，以减少对稀土的需求。稀土是很多美国企业最为看好的清洁能源产品所必需的原材料。
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