重稀土 的英文怎麼說

中文拼音 [zhòngxītǔ]
重稀土 英文
heavy rare earths
  • 重 : 重Ⅰ名詞（重量; 分量） weight Ⅱ動詞（重視） lay [place put] stress on; place value upon; attach im...
  • 稀 : Ⅰ形容詞1 （事物出現得少） rare; scarce; uncommon 2 （事物之間距離遠; 空隙大） sparse; scattered 3...
  1. The magnet of kaiyuan ct permanent canister magnetic dressing machine is made of the high quality ferrite material or rare earth alnico. magnetic separator the average magnetic induction of the canister surface is 100 - 600mt

    磁選機-豫重牌ct永磁筒式磁選機的磁系，採用優質鐵氧體材料或與稀土磁鋼復合而成，磁選機筒表平均磁感應強度為100 600mt 。
  2. The lighter rare-earth metals, from cerium to europium in the first half of the series, have more complex crystal structures than the heavier elements.

    輕的稀土金屬，從鈰到銪的前一半序列比重元素具有更為復雜的晶體結構。
  3. Comparative studies of ree geochemical characteristics of various geologic bodies in the deposit indicate that the various ores and alkaline volcanic rocks contain abundant ree, specially lree the chondrite - normalized patterns of both ores and alkaline volcanic rocks show a strong lree enrichment and positive eu anomaly, in contrasting with the dolostones which show slight lree enrichment and moderately negative eu anomaly

    同期成礦流體從早期到晚期（塊狀礦石條帶狀礦石） ，輕重稀土分異變小，稀土總量增加，條帶狀礦石中稀土含量最高;礦石黃銅礦6345值變化在一0 . 3編到2 . 8 % 。范圍，顯示慢源硫特徵;菱鐵礦6 』 3c （ 8 % 。
  4. Manufacturer of perforated metal and expanded metal, can manufacture decorative hole patterns for the perforated metal

    -中國重要的鋼鐵生產基地，世界上規模最大的稀土產品生產企業。
  5. Based on the studies of microthermometry, gas composition, liquid composition, rare earth elements, ore - forming elements and 13c, d, 18o of fluid inclusions from the mineralization district and the representative deposits, such as zacun gold deposit, shuixie copper - cobalt deposit, shiyancun stibium deposit and bijiashan stibium deposit, two metallogenic fluid systems have been distinguished, i. e., zijinshan metallogenic fluid system and gonglang metallogenic fluid system in weishan - yongping mineralization district

    礦化集中區及扎村金礦、水泄銅鈷礦、石巖村銻礦、筆架山銻礦等典型礦床流體包裹體的顯微測溫、氣相成分、液相成分、稀土元素、重金屬元素及~ （ 13 ） c ， d ， ~ （ 18 ） o穩定同位素的研究表明，雲南巍山-永平地區銅金多金屬礦化集中區存在兩個成礦流體系統：紫金山背斜成礦流體系統與公郎弧成礦流體系統。
  6. From the aspects of agricultural economic and environmental ecological effects, were the effects and mechanism of rare - earth micro - fertilizer to improve the growth, development, quality and yield of the crops ; the adjustment of crops growth by influencing the number of microbial population in soil district and the function of the soil dehydrase, alkaline phosphatase, urease and sucrase ; the ecophysiological effects of alleviating the injure of acid rain, ultraviolet radiation, heavy metal on crops were illustrated ; the sureness of bee ' s use in agricultural was provided, according to the rule of the distribution and enrichment of be in crops

    摘要從農業經濟效應和環境生態效應二方面，論述了稀土肥料促進作物生長、發育，提高作物產量，改善作物品質的效應與機理；影響土壤區系中微生物種群數量和土壤脫氫酶、堿性磷酸酶、脲酶及蔗糖酶的功能，繼而反饋調節作物生長；緩解酸雨、紫外輻射和重金屬傷害作物的生態生理學效應；並以稀土在作物體內分佈與富集規律為參考，探討了稀土農用的安全性。
  7. The result shows that with the addition of rare earth elements, ultrasonic irradiation and magnetic field, the chemical component, surface configuration, microstructure and properties of electroless co - ni - b and co - fe - b alloy changes remarkably. such kind of change can be described as the followings. firstly the depositing speed of electroless alloy bath is raised while the polarizability and cathodic overpotential are reduced ; secondly the surface quality of the alloy coating and adhesion of the coating and matrix are improved ; thirdly in the coatings the content of the elements in the transient group increases, but the content of cobalt decreased ; fourthly the amorphous structure is transformed to microcrystal structure and polycrystal structure ; fifthly the microhardness and wear resistance of the coating are enhanced ; sixthly coercitive force is reduced, and magnetoconductivity of the coating is increased ; lastly the magnetic intensity of the coating increases with the addition of energy and light rare earth elements such as ce, la and decreases with the addition of heavy rare earth elements such as y. on the other side, when the alloy coatings passes through the heat treatment under the temperature of 250 or 500, their properties will change

    結果顯示化學沉積co - ni - b 、 co - fe - b工藝在稀土元素（ ce 、 la 、 y 、 dy ） 、能量（超聲波、磁場）介入后，沉積過程、合金成分、鍍層形貌結構和性能都有顯著變化，表現在：鍍液的陰極極化過電位和極化度降低，沉積速度提高；鍍層的結合力、表面質量改善；鍍層中過渡族元素的含量增加，輕元素硼的含量降低，同時證實了稀土元素與過渡族元素共沉積的可能性；鍍層的顯微結構由非晶態向微晶和多晶態轉變；鍍層的顯微硬度與耐磨性提高，力學性能優化；鍍層的矯頑力降低；磁導率提高；鍍層的磁化強度在能量（超聲波、磁場）和輕稀土元素ce 、 la介入后提高，重稀土元素y介入后降低。
  8. 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:利用江西省豐富的釔基重稀土，結合鎂、鋇、硅、鈣等元素的特性開發了釔基重稀土復合球化劑，該球化劑具有脫硫、脫氧、抗干擾元素、球化和抗球化衰退能力強，細化基體組織，白口傾向小，適用范圍寬等特點，應用於高爐冷卻壁，軋輥等關鍵鑄件上可提高心部力學性能和工藝出品率。
  9. The color of devices is disturbed badly and the luminescent efficiency of devices is degradated because of exciplex ' s emission. the mechanism is investigated in this paper on the formation of exciplex and on the mixing - layer device structure eliminating the exciplex based on rare - earth complex, specially on eu ( dbm ) 3bath and gd ( dbm ) 3bath. it is thought that the exciplex results from the interaction between the singlet excited state of the ligand of electron acceptor material and the ground state of electron donor material

    本論文以稀土配合物oel為重點和基礎，以eu （ dbm ） _ 3bath和gd （ dbm ） _ 3bath為典型材料，研究了激基復合物的形成和稀土配合物器件中混合層能夠消除激基復合物，認為激基復合物是電子受體材料配體能級的單重態與電子給體材料的基態相互作用而產生的。
  10. The contents of rare - earth element in coals are correlative to the contents of the ash of these coals, with a few of coal samples showing exceptional high contents of rare - earth element due to the presence of the heavy mineral assemblages

    煤的稀土元素質量分數與灰分質量分數呈正相關關系，部分煤樣品由於有富稀土元素的重礦物組合的存在而出現稀土元素的異常高值。
  11. In the calculation, we found that indirect exchange of rare earth ion has vital function on the calculation of magnetization and magneto - optical properties. there is some difference between the calculated data and the theoretical data using the current theory

    計算中作者研究發現，用量子理論在計算磁化強度和磁特性時，稀土離子的王維ergag石榴石磁特性的研究間接交換作用對其影響也是至關重要的。
  12. The chances of heavy metal into the plant cell were reduced and stress alleviated. ultrastructural observation of leaf cells of myriophyllum verticillatum linn, showed that la3 + coule alleviate the injury of cell structure produced by cr6 +

    對元素含量的測定表明，稀土元素降低了植物對重金屬的富集量，兩者表現出拮抗作用，減少重金屬離子進入植物葉片細胞的機會，從而減輕了毒害作用。
  13. College of chemistry and molecular engineering, state key laboratory of rare earth materials chemistry and application, peking university ; peking university - the university of hong kong joint laboratory in rare earth materials and bioinorganic chemistry, beijing, 100871 ; state key laboratory of structure chemistry, fuzhou, 350002

    北京大學化學與分子工程學院，稀土材料化學及應用國家重點實驗室北京大學-香港大學稀土材料化學與生物無機化學聯合實驗室，北京， 100871結構化學國家重點實驗室福州， 350002
  14. Effect of re on inclusion of bnbre rail steel

    重軌鋼中稀土對夾雜物的作用
  15. The result of thermogravimetric analysis ( tg ) shows that its thermo - decomposing temperature rises obviously

    熱重量試驗表明含稀土復合彈性材料的熱分解溫度大幅度上升。
  16. When rees widely enter into environment and human body inevitably, peoples begin to pay more attention to the accumulation of rees in organism and the effect on the health of human body, this research consists of two parts : in the first part, the distributing rule of la and y in different tissues and organs were studied by adopting inductively coupled plasma mass spectrometer after organism absorbed it

    本研究內容分為兩部分： （一）採用電感耦合等離子質譜技術研究了生物體攝入輕稀土元素鑭和重稀土元素釔后在不同組織器官的分佈規律，同時測定了經稀土元素處理后的生物體的早期生物量，並就稀土元素的攝入量與組織器官內的積累量進行了相關性分析。
  17. 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

    但在現行的理論中，由於重稀土er ~ （ 3 + ）離子復雜的微觀結構，以及實驗上外磁場高達300koe ，這些都給理論研究造成了一定的難度，所以迄今為止尚未見到對其詳細的量子理論的定量計算研究報道。
  18. 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 .實驗室建立了多組分的串級萃取分離理論，解決長期以來我國重稀土分離技術的難題，成功地在江蘇省建成了一個高純、高效重稀土分離的大企業，控制了世界重稀土市場。
  19. Heavy rare - earth metals and their compounds - determination of total rare earth contents - edta volumetric method

    滴定法測定重稀土金屬及其化合物中稀土總量
  20. Heavy rare earth metals and their compounds. determination of total rare earth contents. edta volumetric method

    稀土金屬及其化合物化學分析方法edta滴定法測定重稀土金屬及其化合物中稀土總量
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