稀土 的英文怎麼說

中文拼音 [xītǔ]
稀土 英文
tombarthite; rare earth稀土金屬 rare-earth metal; 稀土元素 rare-earth element
  • 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. All these rocks aforementioned are mainly parametamorphic rocks. milan, kaqiang and alamasi group underwent high - grade metamorphism of amphibolite facies, together with weak migmatism. they share the same geochemistry and total ree and many other chracters

    二者主要為副變質巖石，米蘭巖群和卡羌巖群、阿拉瑪斯巖群變質較深為角閃巖相，普遍弱混合巖化，它們具有非常相似的地球化學特徵，稀土元素總量及其它特點一致或相近。
  3. Physiological effects of lanthanum on cyanobacterium anabaena azollae

    稀土元素鑭對滿江紅魚腥藻的生理影響
  4. Through the ree charactheristics being studied, it suggests that the xenoliths from hannuoba, ximeng, and puning area have no the trend of lree enrichment, which ratios of lree / hree approximate 1. therefore, it is not different from archean lithospheric mantle

    稀土元素地球化學研究表明，漢諾壩、錫盟、普寧等地區包體則無lree富集的趨勢， lree hree接近於1 ，因此它們與太古代巖石圈地幔不同，稀土元素特徵表明它們遭受了強烈虧損。
  5. The company deals in all sorts of rare earth compounds, individual rare earth oxides and rare earth permenent magnetism materials, etc. in addition, the company supplies all kinds of omniberaing service including technology consultation, technology service and achievement attorn in rare earth research, production and application

    公司還經營各種稀土化合物、單一稀土氧化物和稀土永磁材料等。此外，公司還為稀土企業和其他投資者提供全方位的技術咨詢、技術服務和科研成果轉讓等各種服務，包括稀土科研、生產和應用等各方面。
  6. Depend on the comprehensive analysis and study of the structure, principle, and exterior characteristic of the motor, through the methods of system modeling and digital simulation analysis, two kind of control device that work for the low voltage ( lvdc ) and the high voltage ( hvdc ) in avigation are researched respectively. point to the control technique of close - loop speed stabilization at a limited adjustment speed range, we bring out the close - loop speed control method that using the rotor position sensor indirectly measure the speed of the motor

    在全面分析了稀土永磁無刷直流電動機的結構特點、工作原理、運行方式以及外部特性的基礎上，通過系統建模和數字模擬分析，分別針對航空低壓直流（ lvdc ）和高壓直流（ hvdc ）兩種電動機構用永磁無刷電動機，在小范圍轉速連續調節下的閉環穩速控制技術進行了詳細理論研究，提出了利用轉子位置傳感器信號間接測量電機轉速進行電機轉速閉環穩速控制的策略。
  7. The methods for synthesizing p - hydroxyl ethyl benzoate catalyzed by sulfuric acid, p - toluene sulfonic acid, amino sulfonic acid, strongly acidic cationic exchange resin, ferric chloride hexahydrate, aluminum chloride hexahydrate, stannic chloride pentahydrate, copper sulfate, titanium sulfate, rare earth metal oxide, sodium bisulfate monohydrate, solid super acid and heteropoly acid and so on are reviewed

    摘要評述了硫酸、對甲苯磺酸、氨基磺酸、強酸性陽離子交換樹脂、六水合三氯化鐵、六水合三氯化鋁、五水四氯化錫、硫酸銅、硫酸鈦、稀土金屬氧化物、一水硫酸氫鈉、固體超強酸、雜多酸等催化劑催化合成對羥基苯甲酸乙酯的方法。
  8. The synthesis methods of isobutyl acetate catalyzed by p - toluene sulfonic acid, amino sulfonic acid, strongly acidic cationic exchange resin, ferric chloride hexahydrate, cupric chloride bi - hydrate, stannic chloride pentahydrate, ammonium ferric sulfate dodecahydrate, sodium bisulfate monohydrate, potassium bisulfate, chitosan sulfate, sodium dihydrogen phosphate, rare earth metallic oxide, solid super acid, heteropoly acid and molecular sieve etal were reviewed

    摘要評述了對甲苯磺酸、氨基磺酸、強酸性陽離子交換樹脂、六水三氯化鐵、二水氯化銅、五水四氯化錫、十二水合硫酸鐵銨、一水硫酸氫鈉、硫酸氫鉀、殼聚糖硫酸鹽、磷酸二氫鈉、稀土金屬氧化物、固體超強酸、雜多酸和分子篩等催化劑催化合成乙酸異丁酯的方法。
  9. Synthesis and characterization of ternary complex re - glucosamine - caffeic acid

    稀土氨基葡萄糖咖啡酸配合物的合成與表徵
  10. It was the first time that the nano - ceria and aqueous polyurethane was combined together, the microemulsion of aqueous polyurethane coating ceria nanoparticles was obtained and characterized. the results showed that the ceria is combined with polyurethane by electrostatic action, chemical bond and absorption media action

    首次將稀土納米ceo2和水性聚氨酯復合，得到了包覆有ceo2納米粒子的水性聚氨酯微乳液，表徵結果表明， ceo2和聚氨酯通過靜電作用、化學鍵作用和吸附層媒介作用結合在一起的。
  11. 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。
  12. Chondrite normalized ree distribution patterns for the core q43 are comparable to those of the sediment of changjiang river and huanghe river delta

    球粒隕石標準化后的稀土元素具有與長江、黃河、黃土等上陸殼沉積物相一致的特徵。
  13. 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 % 。
  14. Study on chrominance property of white leds

    用稀土熒光粉的制備和性質
  15. Basing on the government s support and our effort for these years, the output has gradually increased from 800 ton in 1994 to 3000 ton in 2000. especially in 1999, the company invested 2. 8 million yuan rmb emphasizing in technical reform, and set up a neodymium and samarium grouped separation production line to produce a new serious products of low - zinc and low - magnesium rare earth chloride. now the company formed a complete set of service system production to marketing. presently our products has saled covering shandong, shanghai and jiangsu province etc. the company totally possesses 7 million yuan of fized assets and 6 million yuan of circulating capital, and a steady and experienced technical and management team including 2 senior engineer, 3 engineers and 5 other technicians

    1999年以來加大了技術改造，新投入280萬元建成了釹釤分組線一條，生產低鋅、低鎂氯化稀土。 2000年追加技改投資580多萬元，建成了3000噸萃取分離線，可生產稀土系列產品。企業現有固定資產1480多萬元，流動資金1000多萬元，高級工程師5名，工程師3名，大中專專業人才20餘名。
  16. The compositions of usual elements and rare earth elements and inclusions of corundum megacrysts related to alkali basalt in changle, shandong province, are analyzed. in the main parts of corundum megacrysts are a large number of fluid - melting inclusions, zircon, ta - columbite inclusions, and in the central crystal core are a large number of melting inclusions. the corundum megacrysts were formed in different periods and different physical chemistry conditions. the crystal core was formed in magma system, and the main parts were formed in inhomogeneously geochemical conditions in which magam and fluid phases coexisted

    分析山東昌樂與堿性玄武巖有關的剛玉巨晶不同部位的常量元素、稀土元素及包裹體組成.剛玉巨晶的主體以大量流體?熔體包裹體、鋯石、鈮（鉭）鐵礦包裹體為主，而巨晶中的「晶核」部位則以大量的熔體包裹體為主，反映研究區的剛玉巨晶是在不同的階段形成的.剛玉「晶核」以及「銅皮剛玉」形成於熔體相為主的體系中，而主體剛玉則形成於熔體?流體過渡的急劇變化的不均一的地球化學環境中
  17. Situation and developing trend of rare - earth countercurrent extraction processes control

    稀土萃取分離過程自動控制研究現狀及發展趨勢
  18. Application of rare - earth compounds in fine - denier polyamide fiber dyeing with reactive dyes

    稀土在細旦錦綸活性染料染色中的應用
  19. Based on an analysis of geochemical characteristics of rocks and trace elements as well as rare earth elements, this paper holds that they are products of crystallization differentiation of the same magma, that the major ore resource of this area is copper, and that gabbro - diabase is the main ore - bearing horizon

    通過對巖石化學特徵和微量元素、稀土元素地球化學特徵的剖析，表明其是同一巖漿結晶分異的產物，本區主要礦產應為銅，輝長輝綠巖是主要的含礦層位。
  20. The syntheses and properties characterization of rare - earth complexes with aromatic dicarboxylic acid

    二元芳香羧酸稀土配合物的合成與性質表徵
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