重稀土 meaning in English
heavy rare earths
Examples
- But in the current magneto - optical theory , there is some difficulty to calculate it in detail , for the complex microscopic structure of er3 + ion and the high magnetic field up to 300koe . so to date , the quantitative calculation by quantum theory has not been seen
但在现行的理论中，由于重稀土er ~ ( 3 + )离子复杂的微观结构，以及实验上外磁场高达300koe ，这些都给理论研究造成了一定的难度，所以迄今为止尚未见到对其详细的量子理论的定量计算研究报道。 - Abstract : by utlizing abundant local resource of ytirium and combining the characteristics of magnesium , barium , calcium and silicon , a sort of composite nodulizer - ytirium - based heavy rare earth nodulizer was developed which is characterized by its good desulphurizing and deoxidizing rate effect , excellent effect to neutralize anti - nodulizing effect of trace elements , strong nodulizng effect and degeneration - resistance , good effect to fine matrix structure , decreased chilling tendency and wide scope of applicatiom using this nodulizer to produce some important castings such as water - cooled wall of blast furnace and roller could increase mechanical properties of central area and casting yield
文摘:利用江西省丰富的钇基重稀土，结合镁、钡、硅、钙等元素的特性开发了钇基重稀土复合球化剂，该球化剂具有脱硫、脱氧、抗干扰元素、球化和抗球化衰退能力强，细化基体组织，白口倾向小，适用范围宽等特点，应用于高炉冷却壁，轧辊等关键铸件上可提高心部力学性能和工艺出品率。 - The lab has established a multi - component counter - current extraction theory and solved the problems in rare earth separation technology and has successfully established a big separation plant of heavy rare earths in high purity and high yield in jiangsu province , thus controlling the world trade market of heavy rare earths
1 .实验室建立了多组分的串级萃取分离理论，解决长期以来我国重稀土分离技术的难题，成功地在江苏省建成了一个高纯、高效重稀土分离的大企业，控制了世界重稀土市场。