There are two kinds of rare earth metals, the heavy rare earth elements and the light rare earth elements.

稀土有两种，一种是重稀土，一种是轻稀土。

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This abandoned mine in Guyun Village in China exhausted the local deposit of heavy rare-earth elements in three years.

而在中国古云镇的这一废弃稀土矿，三年就已经挖光了所有资源。

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Rare earth metals are often all found together, typically with far more light than heavy elements.

稀土元素通常是同时被发现的，一般来说轻稀土元素的数目远甚于重稀土元素。

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Rare earth elements are a group of 17 heavy metals, which despite their name, are not particularly rare.

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