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zr
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    SPECTROPHOTOMETRIC STUDY OF THE MIXED-LIGAND COMPLEX SYSTEM Zr(Ⅳ)-EDTA- STILBAZO AND ITS APPLICATIONS
    -EDTA-(口底)唑体系混配型络合物的分光光度法研究及其应用
短句来源
    STUDIES ON THE ELECTROANALYTICAL CHEMISTRY OF ANTHRAQUINONE DYE AND ITS APPLICATIONS Ⅰ.THE COMPLEX ADSORPTION WAVE OF Zr(Ⅳ)-TETRAHYDROXYANTHRAQUINONE(THAQ)
    蒽醌类染料的电分析化学研究和应用——Ⅰ.(Ⅳ)-四羟基蒽醌(THAQ)络合吸附波及其应用
短句来源
    STUDIES ON THE ELECTROANALYTICAL CHEMISTRY OF ANTHRAQUINONE DYES AND ITS APPLICATIONS Ⅱ.THE OSCILLOPOLAROGRAPHIC BEHAVIOUR OF THE LIGAND THAQ IN Zr(Ⅳ)-THAQ COMPLEX
    蒽醌类染料的电分析化学研究和应用——Ⅱ.(Ⅳ)-THAQ中络合配位体THAQ的示波极谱行为研究
短句来源
    A STUDY ON COLOR REACTION OF 6, 7-DIHYDROXY-2-PHENYL-BENZOPYRYLIUM CHLORIDE-4-CARBOXYLIC ACID—Zr(Ⅳ)—CTMAB SYSTEMS
    氯化6,7-二羟基-2-苯基苯并吡喃-4-羧酸鎓盐-(Ⅳ)-溴化十六烷基三甲铵新显色体系的研究
短句来源
    THE REACTION OF Ti(O-i-Pr)_4-NaNp-N_2 WITH Zr, Fe-HYDRIDES
    Ti(O-i-Pr)_4-NaNp-N_2固氮体系和、铁氢化物的反应
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  “zr”译为未确定词的双语例句
    Catalytic Properties and Structure of CeO_2 and Ce_(0.5)Zr_(0.5)O_2-Supported CuO or PdO Catalysts
    CeO_2和Ce_(0.5)Zr_(0.5)O_2负载CuO,PdO催化剂的结构及催化性能研究
短句来源
    QUANTITATIVE DETERMINATION OF ~(97)Zr(~(97)Nb) BY THE RADIOISOTOPIC DILUTION METHOD WITH ~(95)Zr AS DILUENT
    用~(95)Zr放射性同位素稀释法测定~(97)Zr(~(97)Zb)
短句来源
    STUDY ON FAST ION CONDUCTOR Na_(1+x) Zr_(2-y)Ti_y Si_x P_(3-x) O_(12) SYSTEM( I )
    钠快离子导体Na_(1+x)Zr_(2-y)Ti_ySi_xP_(3-x)O_(12)系统研究(Ⅰ)
短句来源
    STUDY ON SODIUM FAST IONIC CONDUCTORS Na_(2.5)Zr_(2-x)Ti_xSi_(1.5)P_(1.5)O_(12.0)SYSTEM
    钠快离子导体Na_(2.5)Zr_(2-x)Ti_xSi_(1.5)P_(1.5)O_(12.0)系统的研究
短句来源
    PHASE COMPOSITION AND ELECTRICAL CONDUCTIVITY IN Na_3Zr_(2-x)Y_xSi_(2-x)P_(1+x)O_(12) SYSTEM
    Na_3Zr_(2-x)Y_xSi_(2-x)P_(1+x)O_(12)系统的相组成和导电性
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  zr
Lead zirconium titanate (PZT) films (Zr/Ti=45:55) with a high dielectric constant are prepared successfully on the low-resistance Si substrate in sol-gel dip-coating process with PT film used as the buffer layer.
      
The solid acids were prepared by mounting H2SO4 on TiO2 · nH2O and Zr(OH)4, respectively, followed by calcining at 823K.
      
To deal with this contradictory situation, insolvable zirconium tricarboxybutylphosphonate (Zr(PBTC)) powder was employed to make a composite with SPEEK polymer in an attempt to improve temperature tolerance of the membranes.
      
SPEEK/Zr(PBTC) composite membranes were obtained by casting a homogeneous mixture of Zr(PBTC) and SPEEK in N,N-dimethylacetamide on a glass plate and then evaporating the solvent at 60°C.
      
Results showed significant improvement not only in temperature tolerance, but also in methanol resistance of the SPEEK/Zr(PBTC) composite membranes.
      
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Ortho nitrobenzene sulfinic acid precipitates zirconium quantitatively from hydrochloric acid solutions not stronger than 0.6N. Sixty ml of a warm 2% solution of the reagent is slowly added to 40 ml of the zirconium solution containing 40 millimoles of hydrochloric acid heated to about 70℃. After keeping at 60-70℃ for one half hour and cooling, the precipitate is filtered out and washed with 0.1 N hydrochloric acid. It has the composition of Zr (C6H4NO2SO2)2 after drying at 110-120℃ for two hours. The...

Ortho nitrobenzene sulfinic acid precipitates zirconium quantitatively from hydrochloric acid solutions not stronger than 0.6N. Sixty ml of a warm 2% solution of the reagent is slowly added to 40 ml of the zirconium solution containing 40 millimoles of hydrochloric acid heated to about 70℃. After keeping at 60-70℃ for one half hour and cooling, the precipitate is filtered out and washed with 0.1 N hydrochloric acid. It has the composition of Zr (C6H4NO2SO2)2 after drying at 110-120℃ for two hours. The precipitate can be weighed as such or as zirconium oxide after ignition.O-nitrobenzene sulfinic acid surpasses its mother compound benzene sulfinic acid in reaction selectivity. Under the conditions mentioned above, quadrivalent titanium and tin which form precipitates with benzene sulfinic acid, are not precipitated by the orth nitro compound. The increase in selectivity apparently attributed to steric effect; the corresponding para nitro derivative behaves like benzene sulfinic acid itself. Small amounts of titanium and tin do not interfere the determination of zirconium, but they coprecipitate with the zirconium compound when present in appreciable amounts; in such cases double precipitation is necessary. Good results are obtained for the direct determination of zirconium in the presence of ferric, uranyl, aluminum, cerous and manganous ions. Thorium is the only metallic element studied that is also precipitated by the reagent and seriously interferes the determination of zirconium. Satisfactory results can be obtained after precipitation of thorium with oxalic acid and oxidizing the excess of the latter with potassium permanganate. Sulfate, oxalate, tartrate, citrate, fluoride and large amounts of acetate hinder the complete precipitation of zirconium.

1.邻-硝基苯亚磺酸在0.4N盐酸溶液中与锆离子生成淡黄色絮状沉淀。沉淀不溶于水或0.1N的盐酸,具有恒定的组成ZrO(C_6H_4NO_2SO_2)_2。在110—120℃烘干后可直接 称重,也可以灼烧成ZrO_2后称重。 2.在实验条件下,除锆外只有钍离子与试剂生成沉淀,四价钛、锡离子含量低(<5毫克)时不干扰,含量大时有共沉淀现象。 3.有钍存在时,可以先用草酸分离钍,用高锰酸钾破坏滤液中的草酸,再用邻-硝基苯亚磺酸测定锆。 4.与苯亚磺酸一样,Fe~(+3)、Ce~(+3)、Mn~(+2)、UO_2~(+2)、Al_(+3)等存在无干扰。 5.邻-硝基苯亚磺酸的分析性能比苯亚磺酸好,邻位硝基的存在起了决定性的作用。

Monazite sand is digested with H_2SO_4. The acid extract is successfully treated by sodium pyrophosphate process and sodium fluoride process, when the acidity of the solution during the fluoride precipitation of thorium is above 2N. Thorium fluoride, spectral free from Ti, Zr, Hf, Fe, P and rare earth metals, can be obtained. Ce is also detected by chemical method and the result is negative. The recorery of thorium is about 95%.

将硫酸分解独居石的提取液连续用焦磷酸钠法与氟化钠法处理。当用氟化纳沉淀钍时,溶液的酸度在2N以上,可制得钛,锆,铪,铁,磷及希土元素光谱纯的氟化钍,钍的回收率约95%。

Separation and identification of Zirconium, Thorium, Uranium, Scandium and Titanium by thin layer chromatography with silica gel used as the stationary phase, with TBP saturated with various concentration of nitric acid and Butanol—Acetylacetone—glacial acetic acid mixture as moble phase have been investigated. the results may be summarized as follows: (1) The Zr—Th—U—Sc—Ti mixture can be separated and identified with TBP saturated by concentrated nitric acid as moble phase; (2) Uranium can be separated...

Separation and identification of Zirconium, Thorium, Uranium, Scandium and Titanium by thin layer chromatography with silica gel used as the stationary phase, with TBP saturated with various concentration of nitric acid and Butanol—Acetylacetone—glacial acetic acid mixture as moble phase have been investigated. the results may be summarized as follows: (1) The Zr—Th—U—Sc—Ti mixture can be separated and identified with TBP saturated by concentrated nitric acid as moble phase; (2) Uranium can be separated from rare earths, Thorium and Zirconium with Butanol—Acetylacetone—glacial acid mixture, and thus its identification may be faulitated; (3) The time required for the separation and identification is about 1 hour.

本文提出用薄层色层来分离和检定某些稀有元素阳离子,层析时间短,分离效果良好。我们进行了两种展开剂的试验,其结果为: (1)以14—16N硝酸饱和过的TBP(TBP:C_6H_6=30:70)为展开剂,铀、钍、钪、锆和钛共存时能进行分离和检定,各元素的斑点均无拖尾现象; (2)以不同体积比例(v/v)的正丁醇、乙酰丙酮和醋酸的混合溶液为展开剂,铀斑点集中,钍、希土和锆的斑点有不同程度的拖尾现象,但铀易从钍、锆和希土中进行分离和检定。

 
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