其实，一些稀土元素在国际市场上的价格根本就没有下跌，尤其是那些所谓的重稀土元素，如铽(用于制造先进的激光器和光学仪器)等。
Indeed, some international prices haven't fallen at all, in particular those that are known as heavy rare earths, like terbium, which is used in advanced lasers and optics.
其实，一些稀土元素在国际市场上的价格根本就没有下跌，尤其是那些所谓的重稀土元素，如铽(用于制造先进的激光器和光学仪器)等。
Indeed, some international prices haven't fallen at all, in particular those that are known as heavy rare earths, like terbium, which is used in advanced lasers and optics.
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