?一：rare-earths是什么意思（中英文）解釋的意思

rare-earths是指稀土元素，也稱(chēng)為稀土金屬，是指化學(xué)元素周期表中第三十八至第七十一族的元素，包括鑭系元素和鈧系元素。這些元素在自然界中存在量非常少，因此被稱(chēng)為稀有。它們具有重要的物理和化學(xué)性質(zhì)，在現(xiàn)代工業(yè)、科技和領(lǐng)域有著廣泛的應(yīng)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：怎么讀（音標(biāo)）

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三：用法

rare-earths通常作為一個(gè)整體使用，在句子中作為名詞出現(xiàn)。它可以指代一種特定的化學(xué)元素，也可以指代包含這些元素的礦物或合金。在科技和工業(yè)領(lǐng)域，它們被用作材料、催化劑、磁性材料等。此外，稀土金屬也被廣泛應(yīng)用于電子產(chǎn)品、節(jié)能燈、醫(yī)療設(shè)備等領(lǐng)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句且中英對(duì)照

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

稀土金屬是生產(chǎn)智能手機(jī)和電腦等高科技設(shè)備的必需品。

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

是世界上最大的稀土金屬生產(chǎn)國(guó)。

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

近年來(lái)，由于其獨(dú)特的特性，稀土金屬的需求量一直在穩(wěn)步增長(zhǎng)。

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

該公司專(zhuān)門(mén)從事稀土金屬的提取和加工。

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

由于市場(chǎng)上供求不穩(wěn)定，稀土金屬的價(jià)格一直在波動(dòng)。

五：同義詞及用法

rare earths可以替換為rare earth elements、rare earth metals或rare earth minerals，它們都指代同一類(lèi)元素。此外，也可以用rare metals來(lái)指代稀土金屬。

六：編輯總結(jié)

稀土金屬是一類(lèi)重要的化學(xué)元素，它們?cè)谧匀唤缰蟹浅Ｏ∩?，但具有重要的物理和化學(xué)性質(zhì)，在現(xiàn)代工業(yè)、科技和領(lǐng)域有著廣泛的應(yīng)用。隨著科技的發(fā)展和需求的增加，稀土金屬的重要性也越來(lái)越受到關(guān)注。因此，了解稀土金屬的意義和用法對(duì)于我們更好地認(rèn)識(shí)當(dāng)今世界具有重要意義。