今天我们将继续报道稀土金属类的稀有化学元素。
Today we continue our report on the group of chemical elements known as rare earth metals.
稀土是储量较少的一类金属的统称。
Rare earth, an nonrenewable resource, is a general name for 17 low-reserve metallic elements.
几乎每一个21世纪的家庭都离不开稀土金属；在全球范围内，他们还被广泛的应用于从武器制造到平板电视和移动电话机等类的高科技产品。
These metals are found in almost every 21st Century household, and used globally to make high-tech products, from weapons, to flat-screen TVs and mobile phones.
其中有机发光材料可分为有机小分子、聚合物分子、金属配合物和稀土配合物四类。
Organic light-emitting materials contain organic small molecule materials, polymers, metal chelates and lanthanon chelates.
其中有机发光材料可分为有机小分子、聚合物分子、金属配合物和稀土配合物四类。
Organic light-emitting materials contain organic small molecule materials, polymers, metal chelates and lanthanon chelates.
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