一：rare-earths是什么意思（中英文）解释的意思

rare-earths是指稀土元素，也称为稀土金属，是指化学元素周期表中第三十八至第七十一族的元素，包括镧系元素和钪系元素。这些元素在自然界中存在量非常少，因此被称为稀有。它们具有重要的物理和化学性质，在现代工业、科技和领域有着广泛的应用。

Rare-earths refers to the rare earth elements, also known as rare earth metals, which are the elements in the periodic table from group 38 to 71, including the lanthanide and actinide series. These elements are extremely scarce in nature, hence the name "rare". They possess important physical and chemical properties and have a wide range of applications in modern industry, technology and military.

二：怎么读（音标）

[rɛər ˈɜːθs]

三：用法

rare-earths通常作为一个整体使用，在句子中作为名词出现。它可以指代一种特定的化学元素，也可以指代包含这些元素的矿物或合金。在科技和工业领域，它们被用作材料、催化剂、磁性材料等。此外，稀土金属也被广泛应用于电子产品、节能灯、医疗设备等领域。

Rare-earths are usually used as a whole and appear as a noun in sentences. It can refer to a specific chemical element or a mineral or alloy containing these elements. In the fields of science and industry, they are used as materials, catalysts, magnetic materials, etc. In addition, rare earth metals are widely used in electronic products, energy-saving lamps, medical equipment and other fields.

四：例句1-5句且中英对照

1. Rare-earths are essential for the production of high-tech devices such as smartphones and computers.

稀土金属是生产智能手机和电脑等高科技设备的必需品。

2. China is the world's largest producer of rare-earths.

是世界上最大的稀土金属生产国。

3. The demand for rare-earths has been steadily increasing in recent years due to their unique properties.

近年来，由于其独特的特性，稀土金属的需求量一直在稳步增长。

4. The company specializes in the extraction and processing of rare-earths.

该公司专门从事稀土金属的提取和加工。

5. The price of rare-earths has been fluctuating due to the unstable supply and demand in the market.

由于市场上供求不稳定，稀土金属的价格一直在波动。

五：同义词及用法

rare earths可以替换为rare earth elements、rare earth metals或rare earth minerals，它们都指代同一类元素。此外，也可以用rare metals来指代稀土金属。

六：编辑总结

稀土金属是一类重要的化学元素，它们在自然界中非常稀少，但具有重要的物理和化学性质，在现代工业、科技和领域有着广泛的应用。随着科技的发展和需求的增加，稀土金属的重要性也越来越受到关注。因此，了解稀土金属的意义和用法对于我们更好地认识当今世界具有重要意义。