rare earth

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

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

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

研究稀土离子与植物体保护酶作用机理打下坚实的基础。

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

稀土金，如金钕和金皮（金镨，钕） ，用于稀土磁铁，主要钕铁硼磁铁。

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，本文详了离子交换剂在分析化学中用于碱金、碱土金、贵金、稀土元素、锕系元素等的分离与测定。

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.

果表明，稀土元素能有效地改善铬钒共渗层构，提高共渗层生长速度和性能。

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）苯基卟吩及其稀土镱、钐的配合物。用元素分析、红外光谱、紫外见光谱、核磁共振和激光拉曼光谱等方法进行了表征。