有奖纠错
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Rare earth can influence for shape size,distribution and quantity of niobium carbonide,decrease activity of carbon and niobium i...

对碳化铌形态、大小、分布、数量有影响,可降低碳、铌活度,阻碍碳化铌在奥氏体区的析出。

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It will lay a good foundation for studying the mechanism of the interaction of anti-oxidases with rare earth ions.

这可为研究离子与植物体保护酶作用机理打下坚实的基础。

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Rare earth metals, such as metallic neodymium and metallic didymium (metallic praseodymium-neodymium), are used for rare earth magnets, mainly neodymium-iron-boron magnet.

,如皮(镨,) ,用磁铁,主要铁硼磁铁。

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The results show that rare earth elements can efficiently improve the structures of the Chromvanadizing layer, the rate of growth and properties of diffusion layer.

结果表明,元素能有效地改善铬钒共渗层结构,提高共渗层生长速度和性能。

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This review summaries the application of ion exchangers in the separation and determination of alkali metals, alkali-earth metals, noble metals, rare earth elements and actinoid.

离子交换剂在萃取色谱中得到了广泛的应用,本文详细总结了离子交换剂在分析化学中用、碱、贵元素、锕系元素等的分离与测定。

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A new tetrakis( p glycylglycinephenyl)porphin and its rare earth (Yb,Sm) complexes were synthesized.They have been characterized by elemental analysis,UV vis,IR, 1HNMR and laser Raman spectra.

首次合成了一种新型的四(对甘氨酰甘氨酸)苯基卟吩及其镱、钐的配合物。用元素分析、红外光谱、紫外可见光谱、核磁共振和激光拉曼光谱等方法进行了表征。

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VOA Special 2022年9月

Meanwhile, supplies of rare earths have decreased.

与此同时,供应也在少。

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VOA Special 2017年11月

The researchers also found large amounts of rare earth minerals.

研究人员还发现了大量的矿物。

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VOA Special 2023年2月

Rare earth metals come from minerals found in countries around the world.

金属发现于世界各国的矿物。

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CRI在线 2020年7月

The items eligible for tariff waivers include rare earth ore.

关税条件的商品包括矿。

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VOA Special 2022年8月

When done cheaply, rare earth mining can damage the environment.

如果开采成本低,开采可能会破坏环境。

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科学60秒 听力 2014年1月

It's also a waste of resources, like valuable rare earth metals.

其实它们也有废物利用的价值,比如说含有珍贵的有金属。

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当月 CNN 10 学生英语 2020年11月

And the Pacific Ocean is said to be a treasure trove of rare earth elements.

传说,太平洋是元素的宝库。

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VOA慢速英语_科技

Later, he said, the space agency may try to mine iron and rare earth metals.

他说,之后,美国航空航天局可能会尝试开采铁和金属。

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VOA Special 2022年8月

But in recent years, rare earths have attracted the attention of officials around the world.

但近年来,起了世界各地官员的关注。

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CRI在线 2015年11月

The expedition made significant achievements in surveys of rare earth, cobalt-rich crusts and polymetallic nodules.

“海洋六号”此次考察任务在深海资源调查、富钴结壳资源和多金属结核资源调查等方面取得了丰硕成果。

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CCTV 见闻

As promise China will keep following fair and free trade principles and exporting rare earths.

正如承诺的那样,中国将继续遵循公平和自由贸易原则,出口

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VOA Special 2023年2月

He said he is not worried about the long-term supply of rare earth materials.

他说,他并不担心材料的长期供应。

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VOA慢速英语_科技

EV market leader Tesla said it plans to remove rare earths from its next-generation EVs.

电动汽车市场领头羊特斯拉表示,其计划在下一代电动汽车中不使用

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当月 CNN 10 学生英语 2020年11月

The group outside for rare earth elements is surging.

对于元素的需求正在不断增加。

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Scishow 精选系列

Often, the metal responsible is iron, but rare earth elements like neodymium can do it too.

通常,造成这种情况的金属元素是铁,但是地球上的有元素如钕同样有此效果。

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当月 VOA Special English

Brazil is believed to have the world's third-largest supply, or reserves, of rare earth metals.

巴西被认为拥有世界第三大的金属供应,或者说储量。

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VOA Special 2022年8月

China currently processes about 85 percent of the world's rare earths.

中国目前加工的约占世界总量的85%。

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当月 CNN 10 学生英语 2020年11月

The U.S. has one rare earth mine but it still exports its product to China for processing.

美国有一个矿,但其开发的仍出口到中国加工。

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BBC 听力 2023年6月

Its continental shelf is believed to have deposits of metals, including copper, zinc, cobalt and rare earths.

据信,它的大陆架上有金属矿藏,包括铜、锌、钴和

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VOA Special 2023年2月

Rare earth metals are in demand for products such as magnets, wind turbines, solar panels and computers.

磁铁、风力涡轮机、太阳能电池板和计算机等产品对金属的需求很大。

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